http://publicationslist.org/data/hakan.olin/atom.xml Hakan Olinhttp://publicationslist.org/hakan.olin$basepathfavicon.icoRecent additions to Hakan Olin's PublicationsList.org pagehttp://publicationslist.org/publications.png2013-04-12T09:36:40Z http://publicationslist.org/hakan.olin/refid91 2013-04-12T09:36:07Z

Renyun Zhang, Henrik A Andersson, Mattias Andersson, Britta Andres, Håkan Edlund, Per Edström, Sverker Edvardsson, Sven Forsberg, Magnus Hummelgård, Niklas Johansson, others (2013) <i>Scientific Reports</i> <i></i> <i></i> 3: <br/>

http://publicationslist.org/hakan.olin/refid96 2013-04-12T09:36:07Z

Britta Andres, Sven Forsberg, Ana Paola Vilches, Renyun Zhang, Henrik Andersson, Magnus Hummelgård, Joakim Bäckström, Håkan Olin (2012) <i>Nordic Pulp and Paper Research Journal</i> <i></i> <i></i> 27: 2 <br/>

http://publicationslist.org/hakan.olin/refid97 2013-04-12T09:36:07Z

Henrik Andersson, Britta Andres, Anatoliy Manuilskiy, Sven Forsberg, Magnus Hummelgård, Joakim Bäckström, Renyun Zhang, Håkan Olin (2012) <i>Nordic Pulp and Paper Research Journal</i> <i></i> <i></i> 27: 2 <br/>

http://publicationslist.org/hakan.olin/refid95 2013-04-12T09:36:07Z

Martin Olsen, Magnus Hummelgård, Håkan Olin (2012) <i>PloS one</i> <i></i> <i></i> 7: 1 <br/>

http://publicationslist.org/hakan.olin/refid94 2013-04-12T09:36:07Z

Renyun Zhang, Magnus Hummelgård, Håkan Olin (2012) <i>PloS one</i> <i></i> <i></i> 7: 1 <br/>

http://publicationslist.org/hakan.olin/refid92 2013-04-12T09:36:07Z

Andrey Danilov, Håkan Olin, Johan Angenete (2012) <i></i> <i></i> <i></i> : <br/>

http://publicationslist.org/hakan.olin/refid93 2013-04-12T09:36:07Z

Andrey Danilov, Håkan Olin, Johan Angenete (2012) <i></i> <i></i> <i></i> : <br/>

http://publicationslist.org/hakan.olin/refid98 2013-04-12T09:36:07Z

Renyun Zhang, Håkan Olin (2012) <i>Materials Science and Engineering : C</i> <i></i> <i></i> 32: 1247-1252<br/>

http://publicationslist.org/hakan.olin/refid99 2013-04-12T09:36:07Z

Renyun Zhang, Magnus Hummelgård, Håkan Olin (2012) <i>physica status solidi (a)</i> <i></i> <i></i> 209: 3 519-523<br/>

http://publicationslist.org/hakan.olin/refid104 2013-04-12T09:36:07Z

Renyun Zhang, Magnus Hummelgard, Gang Lv, Hakan Olin (2011) <i>Carbon</i> <i></i> <i></i> 49: 4 1126-1132<br/>

http://publicationslist.org/hakan.olin/refid105 2013-04-12T09:36:07Z

Ren Yun Zhang, Hakan Olin (2011) <i>International J. Biomedical Nanoscience and Nanotechnology</i> <i></i> <i></i> 2: 2 112-135<br/>

http://publicationslist.org/hakan.olin/refid102 2013-04-12T09:36:07Z

Renyun Zhang, Håkan Olin (2011) <i></i> <i>OMICS : Biomedical Perspectives and Applications</i> <i></i> : 119-140<br/>

http://publicationslist.org/hakan.olin/refid103 2013-04-12T09:36:07Z

Alexandra Nafari, Johan Angenete, Krister Svensson, Anke Sanz-Velasco, Håkan Olin (2011) <i></i> <i>Scanning Probe Microscopy in Nanoscience and Nanotechnology 2</i> <i></i> : 59-99<br/>

http://publicationslist.org/hakan.olin/refid101 2013-04-12T09:36:07Z

Håkan Olin (2011) <i></i> <i></i> <i></i> : <br/>

http://publicationslist.org/hakan.olin/refid100 2013-04-12T09:36:07Z

Magnus Hummelgård, Renyun Zhang, Hans-Erik Nilsson, Håkan Olin (2011) <i>PLoS One</i> <i></i> <i></i> 6: 2 <br/>

http://publicationslist.org/hakan.olin/refid86 2010-04-15T11:16:15Z

Renyun Zhang, Magnus Hummelgård, Håkan Olin (2010) <i>Langmuir</i> <i></i> <i>http://www.ncbi.nlm.nih.gov/pubmed/20030319</i> 26: 8 5823-8<br/>

http://publicationslist.org/hakan.olin/refid85 2010-04-15T09:56:58Z

Renyun Zhang, Magnus Hummelgård, Håkan Olin (2010) <i>Carbon</i> <i></i> <i>http://linkinghub.elsevier.com/retrieve/pii/S000862230900637X</i> 48: 2 424-430<br/>

http://publicationslist.org/hakan.olin/refid108 2013-04-12T09:36:07Z

Magnus Hummelgård, Renyun Zhang, Torbjörn Carlberg, Damjan Vengust, Damjan Dvorsek, Dragan Mihailovic, Håkan Olin (2010) <i>Nanotechnology</i> <i></i> <i></i> 21: 16 <br/>

http://publicationslist.org/hakan.olin/refid89 2010-04-15T11:18:27Z

Christine Malmgren, Annika K Eriksson, Ann Cornell, Joakim Bäckström, Sten Eriksson, Håkan Olin (2010) <i>Thin Solid Films</i> <i></i> <i>http://linkinghub.elsevier.com/retrieve/pii/S0040609009015120</i> 518: 3615-3618<br/>

http://publicationslist.org/hakan.olin/refid90 2010-04-15T11:19:00Z

Martin Olsen, Per Gradin, Ulf Lindefelt, Håkan Olin (2010) <i>Physical Review B</i> <i></i> <i>http://link.aps.org/doi/10.1103/PhysRevB.81.054304</i> 81: 5 <br/>

http://publicationslist.org/hakan.olin/refid107 2013-04-12T09:36:07Z

Renyun Zhang, Magnus Hummelgård, Damjan Dvorsek, Dragan Mihailovic, Håkan Olin (2010) <i>Journal of colloid and interface science</i> <i></i> <i></i> 348: 2 299-302<br/>

http://publicationslist.org/hakan.olin/refid106 2013-04-12T09:36:07Z

Renyun Zhang, Magnus Hummelgård, Håkan Olin (2010) <i>Physica B : Condensed Matter</i> <i></i> <i></i> 405: 21 4517-4522<br/>

http://publicationslist.org/hakan.olin/refid83 2009-04-25T06:06:14Z

There are important applications of multiwalled carbon nanotubes (MWCNT) with deposited nanoparticles and several methods exist for synthesizing these nanocomposites. However, a simpler and more efficient method is desired in many cases. Here, we introduce a method where MWCNT were pre-mixed with sodium citrate, and using ultrasonication, shells of sodium citrate were formed on the nanotubes. Thes...<br/><br/>Renyun Zhang, Magnus Hummelgard, Hakan Olin (2009) <i>MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS</i> 158: 1-3 48-52<br/>

http://publicationslist.org/hakan.olin/refid88 2010-04-15T11:19:39Z

Renyun Zhang, Magnus Hummelgård, Håkan Olin (2009) <i>Journal of colloid and interface science</i> <i></i> <i>http://www.ncbi.nlm.nih.gov/pubmed/19729168</i> 340: 58-61<br/>

http://publicationslist.org/hakan.olin/refid82 2009-04-25T06:07:16Z

Here, we present a MEMS atomic force microscope sensor for use inside a transmission electron microscope (TEM). This enables direct in situ TEM force measurements in the nanonewton range and thus mechanical characterization of nanosized structures. The main design challenges of the system and sensor are to reach a high sensitivity and to make a compact design that allows the sensor to be fitted in...<br/><br/>A Nafari, D Karlen, C Rusu, K Svensson, H Olin, P Enoksson (2008) <i>Microelectromechanical Systems, Journal of</i> 17: 2 328-333<br/>

http://publicationslist.org/hakan.olin/refid80 2008-02-16T18:52:57Z

We briefly present a method for the parameterization of assembly systems derived from their ability to form unique structures. The concept of bond uniqueness is introduced and we show how it influences the number of unique structures that a programmable, or algorithmic, self-assembly system can create. Further, we argue that programmable self-assembly systems create embedded, additional computatio...<br/><br/>B Hogberg, J Boo, J Liu-Helmersson, L Glans, H Olin (2008) <i>Systems Self-Assembly - Multidisciplinary Snapshots</i> 245-258<br/>

http://publicationslist.org/hakan.olin/refid84 2009-04-25T07:46:11Z

Dimensionally Stable Anodes (DSA(r)) are used for industrial production of e.g. chlorine and chlorate. It is known that the superior electrocatalytical properties of DSA(r) is due to the large effective area of the porous coating. However, this knowledge is mainly found from in situ electrochemical measurements. Here, we used ex situ methods, AFM, TEM and gas porosimetry, for characterization at t...<br/><br/>C Malmgren, M Hummelgard, J Backstrom, A Cornell, H Olin (2008) <i>Journal of Physics : Conference Series</i> 100: 5 052026-4<br/>

http://publicationslist.org/hakan.olin/refid81 2008-02-16T19:20:37Z

D. Erts, A. Lohmus, J.D. Holmes, H. Olin (2007) <i>Fundamentals of Friction and Wear, Series: NanoScience and Technology</i> 73-100<br/>

http://publicationslist.org/hakan.olin/refid1 2009-04-25T06:08:32Z

Self-assembly of complex, non-periodic nanostructures can only be achieved by using anisotropic building-blocks. The building blocks need to have at least four bonds pointing in separate directions [J. Comput. Theor. Nanosci. 3, 391 (2006)]. We have previously presented a method for the synthesis of such building-blocks using DNA-functionalized gold nanoparticles. Here, we report on the progress i...<br/><br/>B Hogberg, H Olin (2007) <i>EUROPEAN PHYSICAL JOURNAL D</i> 43: 1-3 299-302<br/>

http://publicationslist.org/hakan.olin/refid79 2009-04-25T06:11:02Z

DNA self-assembly is a powerful route to the production of very small, complex structures. When used in combination with nanoparticles it is likely to become a key technology in the production of nanoelectronics in the future. Previously, demonstrated nanoparticle assemblies have mainly been periodic and highly symmetric arrays, unsuited as building blocks for any complex circuits. With the invent...<br/><br/>Bjorn Hogberg, Hakan Olin (2007) <i>Journal of Physics : Conference Series</i> 61: 458-462<br/>

http://publicationslist.org/hakan.olin/refid3 2009-04-25T06:14:12Z

Nanoparticles coated with single stranded DNA have been shown to efficiently hybridize to targets of complementary DNA. This property might be used to implement programmable (or algorithmic) self-assembly to build nanoparticle structures. However, we argue that a DNA coated nanoparticle by itself cannot be used as a programmable self-assembly building block since it does not have directed bonds. A...<br/><br/>B Hogberg, J Helmersson, S Holm, H Olin (2006) <i>APPLIED SURFACE SCIENCE</i> 252: 15 5538-5541<br/>

http://publicationslist.org/hakan.olin/refid2 2009-04-25T06:13:24Z

An important problem in nanotechnology is to develop a method for assembling complex, aperiodic, structures. While simple self-assembly will not be able to address this problem, programmable-, or algorithmic-, self-assembly is powerful enough to be a potential solution. Here, we address the question of how the basic properties of the constituent building blocks are related to the periodicity of th...<br/><br/>B Hogberg, H Olin (2006) <i>JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE</i> 3: 3 391-397<br/>

http://publicationslist.org/hakan.olin/refid4 2009-04-25T06:15:07Z

A capacitive force sensor for in situ nanoindentation experiments in TEM has been designed, manufactured and evaluated. The confined space of the TEM specimen holder restricts the size of the fabricated sensor to 2 turn x 1.5 mm x 2 mm to allow mounting. A unique feature of the sensor is an integrated fixture for interchangeable tips, e.g. diamond tips. The sensor is fabricated in silicon anodical...<br/><br/>A Nafari, A Danilov, H Rodjegard, P Enoksson, H Olin (2005) <i>SENSORS AND ACTUATORS A-PHYSICAL</i> 123-24: 44-49<br/>

http://publicationslist.org/hakan.olin/refid9 2009-04-25T06:16:47Z

A combined transmission electron microscopy-scanning tunneling microscopy (TEM-STM) technique has been used to investigate the force interactions of silicon and germanium nanowires with gold electrodes. The I(V) data obtained typically show linear behavior between the gold electrode and silicon nanowires at all contact points, whereas the linearity of I(V) curves obtained for germanium nanowires w...<br/><br/>K J Ziegler, D M Lyons, J D Holmes, D Erts, B Polyakov, H Olin, K Svensson, E Olsson (2004) <i>APPLIED PHYSICS LETTERS</i> 84: 20 4074-4076<br/>

http://publicationslist.org/hakan.olin/refid8 2009-04-25T07:04:36Z

In this work we report how single crystal nanowires can be assembled into regular arrays using mesoporous thin films to define the architecture. Mesoporous thin films were prepared by a sol-gel method. These provide films of very regular structure and dimensions. The films produced in this way have almost single crystal like structures and can also exhibit strong epitaxy to the underlying silicon ...<br/><br/>K Ziegler, K M Ryan, R Rice, T Crowley, D Erts, H Olin, J Patterson, T R Spalding, J D Holmes, M A Morris (2004) <i>FARADAY DISCUSSIONS</i> 125: 311-326<br/>

http://publicationslist.org/hakan.olin/refid10 2008-02-16T11:43:49Z

We apply molecular dynamics methods for simulation of in situ processes in new combined TEM/SPM technique. The atomic structure transformations of a gold nanobridge between two contacts are studied in processes of loading-unloading and friction cycles, vertical, lateral, diagonal and zigzag motion. In all cases only a singie-atom contact is broken at the final stage of deformations. The deformatio...<br/><br/>A V Pokropivny, A Lohmus, R Lohmus, D Erts, V V Pokropivny, H Olin (2004) <i>NSTI NANOTECH 2004, VOL 3, TECHNICAL PROCEEDINGS</i> <i></i> <i></i> : 173-175<br/>

http://publicationslist.org/hakan.olin/refid7 2009-04-25T06:16:01Z

Here we demonstrate, for the first time experimentally, a nanopipette action for metals using multiwalled carbon nanotubes. The process relies on electromigration forces, created at high electron current densities, enabling the transport of material inside the hollow core of carbon nanotubes. In this way nanoparticles of iron were transported to and from electrically conducting substrates.<br/><br/>K Svensson, H Olin, E Olsson (2004) <i>PHYSICAL REVIEW LETTERS</i> 93: 14 <br/>

http://publicationslist.org/hakan.olin/refid6 2008-02-16T11:43:49Z

Nanoscale gold contacts were investigated both experimentally and theoretically. Simulations of in situ processes in a new combined TEM-AFM microscope were performed by molecular dynamics and theoretical mechanics methods. Atomistic transformations of gold nanometer-sized wires (nanowires) between Au-probe and Au-surface were studied in processes both of loading-unloading and in the normal, latera...<br/><br/>A V Pokropivny, D Erts, V V Pokropivny, A Lohmus, R Lohmus, H Olin (2004) <i>PHYSICS OF LOW-DIMENSIONAL STRUCTURES</i> <i></i> <i></i> 1-2: 83-90<br/>

http://publicationslist.org/hakan.olin/refid5 2008-02-16T11:43:49Z

The paper describes the use of an in-situ microscopy technique, which combines transmission electron microscopy (TEM) with scanning probe microscopy (SPM), to investigate the electrical and mechanical properties of individual silicon and germanium nanowires. Additionally, the formation of ordered arrays of size-monodisperse silicon and germanium nanowires within mesoporous silica powders and thin ...<br/><br/>D Erts, B Polyakov, E Saks, H Olin, L Ryen, K Ziegler, J D Holmes (2004) <i>FUNCTIONAL NANOMATERIALS FOR OPTOELECTRONICS AND OTHER APPLICATIONS</i> <i></i> <i></i> 99-100: 109-115<br/>

http://publicationslist.org/hakan.olin/refid15 2009-04-25T06:28:41Z

We present a method for combined far-field Raman imaging, topography analysis and near-field spectroscopy. Surface-enhanced Raman spectra of Rhodamine 6G (R6G) deposited on silver nanoparticles were recorded using a bent fibre aperture-type near-field scanning optical microscope (NSOM) operated in illumination mode. Special measures were taken to enable optical normal-force detection for control o...<br/><br/>J Prikulis, K V G K Murty, H Olin, M Kall (2003) <i>JOURNAL OF MICROSCOPY-OXFORD</i> 210: 269-273<br/>

http://publicationslist.org/hakan.olin/refid17 2009-04-25T07:05:25Z

A scanning tunneling microscope (STM) with a compact, three-dimensional, inertial slider design is presented. Inertial sliding of the STM tip, in three dimensions, enables coarse motion and scanning using only one piezoelectric tube. Using the same electronics both for scanning and inertial sliding, step lengths of less than 5% of the piezo range were achieved. The compact design, less than 1 cm3 ...<br/><br/>K Svensson, Y Jompol, H Olin, E Olsson (2003) <i>REVIEW OF SCIENTIFIC INSTRUMENTS</i> 74: 11 4945-4947<br/>

http://publicationslist.org/hakan.olin/refid14 2008-02-16T11:43:49Z

Spatially distributed DNA oligomer arrays on Au(111) surfaces were created by one-step co-assembly of mixed monolayers of alkanethiol-conjugated DNA and mercaptohexanol (MCH). Tapping-mode AFM was used to visualize the distribution of DNA molecules on the surface and to study the mechanical properties of individual molecules. The DNA coating density increased nonlinearly with increasing mole fract...<br/><br/>D Erts, B Polyakov, H Olin, E Tuite (2003) <i>JOURNAL OF PHYSICAL CHEMISTRY B</i> <i></i> <i></i> 107: 15 3591-3597<br/>

http://publicationslist.org/hakan.olin/refid16 2009-04-25T06:30:02Z

We report a "clean" and fast process, utilizing supercritical carbon dioxide, for producing ultrahigh densities, Up to 10(12) nanowires per square centimeter, of ordered germanium nanowires on silicon and quartz substrates. Uniform mesoporous thin films were employed as templates for the nucleation and growth of unidirectional nanowire arrays orientated almost perpendicular to a substrate surface....<br/><br/>K M Ryan, D Erts, H Olin, M A Morris, J D Holmes (2003) <i>JOURNAL OF THE AMERICAN CHEMICAL SOCIETY</i> 125: 20 6284-6288<br/>

http://publicationslist.org/hakan.olin/refid13 2008-02-16T11:43:49Z

The paper describes the use of an in-situ microscopy technique, which combines transmission electron microscopy (TEM) with scanning probe microscopy (SPM), to investigate the electrical and mechanical properties of individual silicon and germanium nanowires. Additionally, the formation of ordered arrays of size-monodisperse silicon and germanium nanowires within mesoporous silica powders and thin ...<br/><br/>D Erts, B Polyakov, E Saks, H Olin, L Ryen, K Ziegler, J D Holmes (2003) <i>FUNCTIONAL NANOMATERIALS FOR OPTOELECTRONICS AND OTHER APPLICATIONS</i> <i></i> <i></i> 99-100: 109-115<br/>

http://publicationslist.org/hakan.olin/refid12 2008-02-16T11:43:49Z

Nanowires are expected to play an important role in future electronic, optical devices and nanoelectromechanical devices. Measuring the electrical and mechanical properties of nanowires is however a difficult task due to their small dimensions. Here we report the use of an in situ microscopy technique, which combines transmission electron microscopy (TEM) with scanning probe microscopy (SPM), to i...<br/><br/>D Erts, B Polyakov, A Lohmus, R Lohmus, H Olin, M A Morris, J D Holmes (2003) <i>PHYSICS OF LOW-DIMENSIONAL STRUCTURES</i> <i></i> <i></i> 3-4: 65-73<br/>

http://publicationslist.org/hakan.olin/refid11 2008-02-16T11:43:49Z

Metallic nanowires of cobalt, copper, and iron oxide magnetite (Fe3O4) have been synthesized within the pores of mesoporous silica using a supercritical fluid inclusion technique. The mesoporous matrix provides a means of producing a high density of stable, hexagonally ordered arrays of highly crystalline nanowires. The formation of the metal and metal oxide nanowires within the silica mesopores w...<br/><br/>T A Crowley, K J Ziegler, D M Lyons, D Erts, H Olin, M A Morris, J D Holmes (2003) <i>CHEMISTRY OF MATERIALS</i> <i></i> <i></i> 15: 18 3518-3522<br/>

http://publicationslist.org/hakan.olin/refid21 2008-02-16T11:43:49Z

We report on the near-field imaging of silver nanoparticles using an aperture-type near-field microscope operated in illumination mode. The nanoparticles are imaged as interference patterns, due to far-field superposition of the optical fields emitted from the tip and elastically scattered from localized surface plasmons (SP). Aperture-type probe can thus be used to obtain information on the phase...<br/><br/>J Prikulis, H Xu, L Gunnarsson, M Kall, H Olin (2002) <i>JOURNAL OF APPLIED PHYSICS</i> <i></i> <i></i> 92: 10 6211-6214<br/>

http://publicationslist.org/hakan.olin/refid20 2008-02-16T11:43:49Z

Magnetic particles of microscopic size can be created in the process of Ni, Fe and Co mechanically controllable break junctions fabrication and trapped between the electrodes by magnetic dipole forces. Tunneling between the protruding nanoparticle and the sample electrode shows clear distinctions from the usual junctions: heavy deviation of the current-distance I(z) dependence from the expected ex...<br/><br/>O Y Kolesnychenko, D Erts, O I Shklyarevskii, H Olin, H van Kempen (2002) <i>PHYSICA B</i> <i></i> <i></i> 315: 1-3 171-178<br/>

http://publicationslist.org/hakan.olin/refid19 2008-02-16T11:43:49Z

We have investigated force interactions between two gold samples using a combination of atomic force microscope (AFM) and a transmission electron microscope (TEM) (TEM-AFM). The size and shape of the tip and sample as well as size of contact area and interactions type (elastic-plastic) is observed directly. The force was measured by direct measurement of the displacement of the AFM tip. An anomalo...<br/><br/>D Erts, A Lohmus, R Lohmus, H Olin, A V Pokropivny, L Ryen, K Svensson (2002) <i>APPLIED SURFACE SCIENCE</i> <i></i> <i></i> 188: 3-4 460-466<br/>

http://publicationslist.org/hakan.olin/refid18 2008-02-16T11:43:49Z

Nanowires are expected to play an important role in future electronic, optical devices and nanoelectromechanical devices. Measuring the electrical and mechanical properties of nanowires is however a difficult task due to their small dimensions. Here we report the use of an in-situ microscopy technique, which combines transmission electron microscopy (TEM) with scanning probe microscopy (SPM), to i...<br/><br/>D Erts, H Olin, J D Holmes (2002) <i>ADVANCED OPTICAL DEVICES, TECHNOLOGIES, AND MEDICAL APPLICATIONS</i> <i></i> <i></i> 5123: 248-258<br/>

http://publicationslist.org/hakan.olin/refid23 2008-02-16T11:43:49Z

STM and AFM combined with a transmission electron microscope (TEM) are powerful tools for direct investigation of structures, electronic properties, and interactions at the atomic and nanometer scale. Here, we report on three different designs of such TEM-SPM. In the first TEM-SPM design, a stepper motor performed the coarse approach. The advantage of this design was the strong pulling force that ...<br/><br/>R Lohmus, D Erts, A Lohmus, K Svensson, Y Jompol, H Olin (2001) <i>PHYSICS OF LOW-DIMENSIONAL STRUCTURES</i> <i></i> <i></i> 3-4: 81-89<br/>

http://publicationslist.org/hakan.olin/refid25 2008-02-16T11:43:49Z

A long-standing problem for piezo-electric inertial motors is the decrease of efficiency and step length at lower temperatures. We have developed a piezoelectric vibration driver for positioning in a temperature range of 4 - 400K for Scanning Probe Microscopes (SPM). The vibrator consists of two parallel piezoceramic plates, which are fixed rigidly to the support at their centre, and to the endpie...<br/><br/>R Raamat, R Lohmus, A Lohmus, P Liblik, M Lobjakas, L Montelius, J Lindahl, D Erts, H Olin (2001) <i>FERROELECTRICS</i> <i></i> <i></i> 258: 1-4 339-344<br/>

http://publicationslist.org/hakan.olin/refid26 2008-02-16T11:43:49Z

We use scanning tunneling microscopy (STM) and core and valence photoemission as well as low-energy electron diffraction to characterize recently discovered S/Cu(111) surface structures that appear at low coverage below ordering temperatures of around 230 K. At even lower coverage ordered local arrangements are observed near steps and dislocations. Of the laterally extending structures one is open...<br/><br/>E Wahlstrom, I Ekvall, T Kihlgren, H Olin, S A Lindgren, L Wallden (2001) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 64: 15 <br/>

http://publicationslist.org/hakan.olin/refid22 2008-02-16T11:43:49Z

Ultrathin Na films and islands on graphite realized prototype simple metal quantum wells with all valence electrons confined within boundaries well defined on the atomic scale. This is shown by angle-resolved photoemission and scanning tunneling microscopy data, which give unique information about electron dispersion, hole lifetimes, and Fermi wavelengths.<br/><br/>M Breitholtz, T Kihlgren, S A Lindgren, H Olin, E Wahlstrom, L Wallden (2001) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 64: 7 art. no.-073301<br/>

http://publicationslist.org/hakan.olin/refid30 2008-02-16T11:43:49Z

We study single-electron transport in quench-condensed bismuth films. By lateral confinement, we select a specific cluster of about 10(3) atoms and use tunneling barriers that appear naturally during thin-film formation. A remarkable reversible increase of the sample conductance up to 5 times was found as the temperature was lowered from 11 to 4 K. We attribute this effect to a spontaneous distort...<br/><br/>S E Kubatkin, A V Danilov, H Olin, T Claeson (2000) <i>PHYSICAL REVIEW LETTERS</i> <i></i> <i></i> 84: 25 5836-5839<br/>

http://publicationslist.org/hakan.olin/refid29 2008-02-16T11:43:49Z

Nanobridges in thin 1-3 nm granular bismuth quench-condensed films with lengths and widths of 10 nm have been formed on top of an electrostatic gate made of oxidized aluminum. Periodic gate modulation of the Coulomb blockade-type I(V) curves of these nanoconstrictions has been observed in the temperature range 4.2-11 K, indicating that the charge of a single grain controlled the transport in the c...<br/><br/>S E Kubatkin, A V Danilov, H Olin, T Claeson (2000) <i>PHYSICA B-CONDENSED MATTER</i> <i></i> <i></i> 280: 1-4 401-402<br/>

http://publicationslist.org/hakan.olin/refid27 2008-02-16T11:43:49Z

We have investigated the conductance of gold point contacts using a scanning tunneling microscope (STM) inside a transmission electron microscope (TEM). Measuring the conductance of these point contacts as a function of radius, we could directly compare it with theories both in the ballistic regime (Sharvin) as well as in the diffusive regime (Maxwell). The width of the contacts were between a sin...<br/><br/>D Erts, H Olin, L Ryen, E Olsson, A Tholen (2000) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 61: 19 12725-12727<br/>

http://publicationslist.org/hakan.olin/refid28 2008-02-16T11:43:49Z

Quench-condensed bismuth films of 3-5 nm thickness have been used as a cluster source to prepare Single Electron Transistors (SET) based on a single cluster with high charging energy. We used electron-beam defined shadow evaporation masks to pattern la nm wide constrictions in these films. By incremental depositions through these masks controlled by in situ sample conductance measurements, we obta...<br/><br/>S E Kubatkin, A V Danilov, H Olin, T Claeson (2000) <i>JOURNAL OF LOW TEMPERATURE PHYSICS</i> <i></i> <i></i> 118: 5-6 307-316<br/>

http://publicationslist.org/hakan.olin/refid32 2008-02-16T11:43:49Z

We have observed local effects of the charge-density wave (CDW) in in situ Na-intercalated 1T-VSe2 using scanning tunneling microscopy and spectroscopy between 300 acid 60 K. Na intercalates nonuniformly, and divides the sample into intercalated (I) and nonintercalated (NI) areas. Below the CDW transition temperature these areas displayed totally different CDW's. The NI areas seemed unaffected by ...<br/><br/>I Ekvall, H E Brauer, E Wahlstrom, H Olin (1999) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 59: 11 7751-7761<br/>

http://publicationslist.org/hakan.olin/refid31 2008-02-16T11:43:49Z

We have investigated methods for cleaning de-etched polycrystalline tungsten tips for scanning tunnelling microscopy (STM). The cleaning methods include Ar-ion sputtering, heating, chemical treatments and Ne-ion self-sputtering. We correlate transmission electron microscopy images of the tip, field-emission data from the tip and images of a clean Cu(111) surface to find an optimum procedure for ST...<br/><br/>I Ekvall, E Wahlstrom, D Claesson, H Olin, E Olsson (1999) <i>MEASUREMENT SCIENCE & TECHNOLOGY</i> <i></i> <i></i> 10: 1 11-18<br/>

http://publicationslist.org/hakan.olin/refid34 2008-02-16T11:43:49Z

Via scanning tunneling microscopy and low energy electron loss diffraction we observe ordered low-temperature surface structures for S/Cu(111) at low-S coverage and characterize the system also with core level photoemission. The first structure to appear upon S deposition is honeycomblike with a large mesh [(root 43 x root 43) R +/- 7.5 degrees], a large nearest S-S distance (similar to 4 Angstrom...<br/><br/>E Wahlstrom, I Ekvall, H Olin, S A Lindgren, L Wallden (1999) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 60: 15 10699-10702<br/>

http://publicationslist.org/hakan.olin/refid38 2008-02-22T22:58:25Z

The growth of ex situ Tl2Ba2CuO6 films on single-crystal LaAlO3 was investigated using atomic force microscopy and X-ray diffraction. Most of the film surface consisted of flat areas separated by single or several unit-cell steps. This morphology suggests that the films grow predominantly by a step-flow mechanism. A Tl-2201 film grown using a precursor him deposited at 700 degrees C exhibited stac...<br/><br/>D Erts, Z G Ivanov, H Olin, T Claeson, H Q Chen, L G Johansson, Q H Hu (1998) <i>APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING</i> 66: S1223-S1226<br/>

http://publicationslist.org/hakan.olin/refid37 2008-02-16T11:43:49Z

We have used an ultrahigh vacuum variable-temperature scanning tunneling microscope to study in situ Na intercalation in 1T-VSe2. At room temperature the clean surface showed large flat areas and a trigonal atomic arrangement. Tunneling spectroscopy revealed the known state at 100 mV below E-F. At 60 K the clean surface showed a 4 x 4 charge density wave and the spectra showed a CDW gap Delta appr...<br/><br/>I Ekvall, H E Brauer, H Olin, H I Starnberg, E Wahlstrom (1998) <i>APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING</i> <i></i> <i></i> 66: S197-S201<br/>

http://publicationslist.org/hakan.olin/refid36 2008-02-16T11:43:49Z

We present and analyze theoretically measurements of the room temperature I - V characteristics of gold nanowires whose zero current conductance is quantized in units of 2e(2)/h. A faster than linear increase of current was observed at low voltages beginning from V-c similar or equal to 0.1V. We analyze the nonlinear behavior using a Luttinger liquid approach and show that it can be understood in ...<br/><br/>J L Costa-Kramer, N Garcia, M Jonson, I V Krive, H Olin, P A Serena, R I Shekhter (1998) <i>NANOSCALE SCIENCE AND TECHNOLOGY</i> <i></i> <i></i> 348: 1-10<br/>

http://publicationslist.org/hakan.olin/refid40 2008-02-16T11:43:49Z

Scanning electrochemical microscopy and atomic force microscopy were used together with cyclic voltammetry and rotating ring disc experiments to study the initial oxidation of cobalt in alkaline solution. The results show that the mechanism of cobalt oxidation involves a solid state path as well as dissolution combined with precipitation. In the concentration region studied, 0.1-1 M NaOH, the soli...<br/><br/>D Erts, E Ahlberg, J Asbjornsson, H Olin, J Prikulis (1998) <i>APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING</i> <i></i> <i></i> 66: S477-S480<br/>

http://publicationslist.org/hakan.olin/refid35 2008-02-16T11:43:49Z

The charging energy is important for a mesoscopic body with small capacitance to the environment. Connecting the small island via low capacitance, high resistance tunnel junctions, the current through the resulting structure will depend upon the charge of the island - charge that can be applied via a gate electrode. For a normal metal island, the current varies periodically with the charge; the pe...<br/><br/>T Claeson, P Delsing, Z Ivanov, S Kubatkin, L Kuzmin, H Olin, V Petrashov, R S Shaikhadarov, A Tzalenchuk (1998) <i>NANOSCALE SCIENCE AND TECHNOLOGY</i> <i></i> <i></i> 348: 79-89<br/>

http://publicationslist.org/hakan.olin/refid45 2008-02-16T11:43:49Z

Three cryostats were designed and constructed where,the cooling is achieved without boiling in the main vessel: 1) smooth controlled raising of pressure of the cryoliquid inside the main vessel with SPM; 2) using the cooling cell where the cryoliquid boils at a temperature a little lower than that of the main vessel; 3) using a porous ceramic cryovessel for cooling the liquid by filtration and eva...<br/><br/>A Lohmus, R Lohmus, J Dzelme, J Lindahl, H Olin (1998) <i>INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE 1998</i> <i></i> <i></i> : 659-662<br/>

http://publicationslist.org/hakan.olin/refid46 2008-02-16T11:43:49Z

When two metal electrodes are separated, a nanometer-sized wire (nanowire) is formed just before the contact breaks. The electrical conduction measured during this retraction process shows signs of quantized conductance in units of G(o)=2e(2)/h. Recent experiments show that the force acting on the wire during separation fluctuates, which has been interpreted as being due to atomic rearrangements. ...<br/><br/>S Blom, H Olin, J L Costa-Kramer, N Garcia, M Jonson, P A Serena, R I Shekhter (1998) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 57: 15 8830-8833<br/>

http://publicationslist.org/hakan.olin/refid44 2008-02-16T11:43:49Z

We have used an ultra-high vacuum variable temperature scanning tunnelling microscope to study the Cu(111) surface at temperatures from 90 K to 300 K. After the sample is heated to 900 K, adatoms enriched at the surface. Around these adatoms ring-formed standing-wave features can be seen in the local density of states (LDOS). When more than one of the adatoms were imaged it became evident that the...<br/><br/>E Wahlstrom, I Ekvall, H Olin, L Wallden (1998) <i>APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING</i> <i></i> <i></i> 66: S1107-S1110<br/>

http://publicationslist.org/hakan.olin/refid43 2008-02-16T11:43:49Z

We have used an ultra-high vacuum variable temperature scanning tunnelling microscope to study the Cu(111) surface at temperatures from 90 K to 300 K. After the sample is heated to 900 K, adatoms enriched at the surface. Around these adatoms ring-formed standing-wave features can be seen in the local density of states (LDOS). When more than one of the adatoms were imaged it became evident that the...<br/><br/>E Wahlstrom, I Ekvall, H Olin, L Wallden (1998) <i>APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING</i> <i></i> <i></i> 66: S1107-S1110<br/>

http://publicationslist.org/hakan.olin/refid42 2008-02-16T11:43:49Z

When two metal electrodes are separated, a nanometer sized wire (nanowire) is formed just before the contact breaks. The electrical conduction measured during this retraction process shows signs of quantized conductance in units of G(0) = 2e(2)/h. Recent experiments show that the force acting on the wire during separation fluctuate, which is interpreted as due to atomic rearrangements, In this rep...<br/><br/>H Olin, S Blom, H Jonson, R Shekhter, J L Costa-Kramer, N Garcia, P A Serena (1998) <i>NANOSCALE SCIENCE AND TECHNOLOGY</i> <i></i> <i></i> 348: 11-17<br/>

http://publicationslist.org/hakan.olin/refid41 2008-02-16T11:43:49Z

A technique was developed to fabricate and probe nanosize tunneling structures in thin metallic films. Using oblique evaporation through conventional undercut electron-beam lithographic masks, as the sample resistance was measured in situ, we defined constrictions with widths and lengths of about 10 nm in thin granular palladium films. The tunneling conductivity through a network of metallic grain...<br/><br/>S E Kubatkin, A V Danilov, A L Bogdanov, H Olin, T Claeson (1998) <i>APPLIED PHYSICS LETTERS</i> <i></i> <i></i> 73: 24 3604-3606<br/>

http://publicationslist.org/hakan.olin/refid56 2008-02-16T11:43:49Z

A compact, less than 0.3 cm(3), scanning tunnelling microscope (STM) based on a new inertial slider design is presented. The STM is built of two concentric piezoelectric tubes, the inner one for scanning the tip and the outer one for inertial sliding of the sample to and from the tip. The coarse approach is made by inertial sliding of the sample along a plane that is non-perpendicular to the tip, ...<br/><br/>K Svensson, F Althoff, H Olin (1997) <i>MEASUREMENT SCIENCE & TECHNOLOGY</i> <i></i> <i></i> 8: 11 1360-1362<br/>

http://publicationslist.org/hakan.olin/refid57 2008-02-16T11:43:49Z

E Wahlstrom, I Ekvall, D Claesson, H Olin, L Wallden (1997) <i>ECASIA 97 : 7TH EUROPEAN CONFERENCE ON APPLICATIONS OF SURFACE AND INTERFACE ANALYSIS</i> <i></i> <i></i> : 563-566<br/>

http://publicationslist.org/hakan.olin/refid55 2008-02-16T11:43:49Z

When a scanning tunnelling microscope (STM) tip is driven into a metallic sample surface a nanometer sized wire (nanowire) is formed during the subsequent retraction. The electrical conduction measured during this retraction process shows signs of quantized conductance in units of 2e(2)/h. Due to the inherent non-reproducibility of the measured conductance curves a standard technique is to build h...<br/><br/>H Olin, J L Costa-Kramer, N Garcia, S E Kubatkin, T Claeson (1997) <i>NANOWIRES</i> <i></i> <i></i> 340: 237-242<br/>

http://publicationslist.org/hakan.olin/refid58 2008-02-16T11:43:49Z

H E Brauer, I Ekvall, H Olin, H I Starnberg, E Wahlstrom (1997) <i>ECASIA 97 : 7TH EUROPEAN CONFERENCE ON APPLICATIONS OF SURFACE AND INTERFACE ANALYSIS</i> <i></i> <i></i> : 599-602<br/>

http://publicationslist.org/hakan.olin/refid59 2008-02-16T11:43:49Z

Y A Boikov, Z G Ivanov, E Olsson, D Erts, H Olin, T Claeson (1997) <i>ECASIA 97 : 7TH EUROPEAN CONFERENCE ON APPLICATIONS OF SURFACE AND INTERFACE ANALYSIS</i> <i></i> <i></i> : 909-912<br/>

http://publicationslist.org/hakan.olin/refid47 2008-02-16T11:43:49Z

In situ Na intercalation of the layered compound VSe2 has been studied with photoemission and scanning tunneling microscopy. Core-level spectroscopy proves that Na deposited in UHV onto the VSe2 surface rapidly intercalates, leaving only small amounts at the surface. The scanning tunneling microscopy measurements show that the intercalated Na is not uniformly distributed between the VSe2 layers, b...<br/><br/>H E Brauer, I Ekvall, H Olin, H I Starnberg, E Wahlstrom, H P Hughes, V N Strocov (1997) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 55: 15 10022-10026<br/>

http://publicationslist.org/hakan.olin/refid53 2008-02-16T11:43:49Z

In order to present a clear picture of the density of states at both sides of the Fermi level (E-F) in 1T-TaS2 near the nearly commensurate to commensurate transition (similar to 187 K) and at low temperatures, we have done a temperature-dependent tunneling spectroscopy study using a scanning tunneling microscope. We observed an abrupt transition from a charge-density-wave induced depletion to an ...<br/><br/>J J Kim, H Olin (1997) <i>JOURNAL OF THE KOREAN PHYSICAL SOCIETY</i> <i></i> <i></i> 31: 1 131-134<br/>

http://publicationslist.org/hakan.olin/refid54 2008-02-16T11:43:49Z

We have investigated the charge-density-wave (CDW) formation associated with the periodic lattice distortion in 1T-VSe2 by using a low temperature scanning tunneling microscope (STM) at 4.2 K. To clarify the atomic and the superlattice structures, we used a layer etching technique to fabricate a step of 1T-VSe2 with a height of approximate to 6 Angstrom and investigated the atomic structures at 4....<br/><br/>J J Kim, C Park, H Olin (1997) <i>JOURNAL OF THE KOREAN PHYSICAL SOCIETY</i> <i></i> <i></i> 31: 4 713-716<br/>

http://publicationslist.org/hakan.olin/refid48 2008-02-16T11:43:49Z

Conductance experiments on Bi nanowires at 4 K, obtained with a scanning tunneling microscope, are presented. The conductance of these Bi nanocontacts, formed between two Bi electrodes, exhibits plateaus at quantized values of G(0) = 2e(2)/h, remaining basically constant during electrode separations of about 50 nm. This is the first rime that such plateaus have been observed in semimetals. This hi...<br/><br/>J L CostaKramer, N Garcia, H Olin (1997) <i>PHYSICAL REVIEW LETTERS</i> <i></i> <i></i> 78: 26 4990-4993<br/>

http://publicationslist.org/hakan.olin/refid50 2008-02-16T11:43:49Z

Conductance experiments on Bi nanowires at 4K, obtained with a Scanning Tunneling Microscope, are presented. The conductance of these Bi nanocontacts, formed between two Bi electrodes, exhibits plateaus at quantized values of G(0)=2e(2)/k, remaining basically constant during electrode separations of about 50 nm. This is the first time that such plateaus have been observed in semimetals. The histog...<br/><br/>N Garcia, J L Costa-Kramer, H Olin (1997) <i>NANOWIRES</i> <i></i> <i></i> 340: 243-250<br/>

http://publicationslist.org/hakan.olin/refid49 2008-02-16T11:43:49Z

We have studied the atomic and electronic structures of the two different layers in 4Hb-TaS2 prepared by a layer-by-layer etching technique using a scanning tunneling microscope at 4.2 K, One layer (1T) showed the typical root 13x root 13 charge-density-wave structure, whereas the other layer (1H) had at low bias a triangular atomic structure with weakly superposed 3x3 and at high positive bias a ...<br/><br/>I Ekvall, J J Kim, H Olin (1997) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 55: 11 6758-6761<br/>

http://publicationslist.org/hakan.olin/refid51 2008-02-16T11:43:49Z

Tl2Ba2CuO6 (Tl-2201) thin films were synthesised on single crystal LaAlO3 and SrTiO3 substrates and on bicrystal LaAlO3 by an ex-situ process. Depending on thallium content and processing conditions, the films were orthorhombic or tetragonal. T-c was in the range 30 - 92 K while J(c) reached 4.10(6)A/cm(2) at 12 K. By oxygen depletion, T-c was increased by 15 - 20 K for some films.<br/><br/>Q H Hu, L G Johansson, H Q Chen, Z G Ivanov, D Erts, H Olin, T Claeson, E A Stepantsov (1997) <i>PHYSICA C</i> <i></i> <i></i> 282: 1075-1076<br/>

http://publicationslist.org/hakan.olin/refid52 2008-02-16T11:43:49Z

Using scanning tunneling microscope (STM), we have fabricated steps of 4Hb-TaS2 with the height similar to 6 Angstrom and investigated the electronic and atomic structures on the two different layers near the step region at 4.2 K. The measured STM images and tunneling spectra revealed completely different atomic and electronic structures of the 1T and 1H type layers. The 1T type layers showed the ...<br/><br/>J J Kim, H Olin (1997) <i>JOURNAL OF THE KOREAN PHYSICAL SOCIETY</i> <i></i> <i></i> 31: 1 127-130<br/>

http://publicationslist.org/hakan.olin/refid61 2008-02-16T11:43:49Z

Using an ultra high vacuum (UHV) scanning tunneling microscope where the sample is cooled while the tip remains close to room temperature, we measured the thermoelectric voltage induced by the large thermal gradient between the tip anti sample. Using tunneling thermometry technique we studied the change of electronic structures of 1T-TaS2 front room temperature to 40 K. At the temperature for the ...<br/><br/>J J Kim, I Ekvall, H Olin (1996) <i>CZECHOSLOVAK JOURNAL OF PHYSICS</i> <i></i> <i></i> 46: 2599-2600<br/>

http://publicationslist.org/hakan.olin/refid60 2008-02-16T11:43:49Z

We have used scanning tunneling spectroscopy to measure temperature dependent tunneling spectra of 1T-TaS2 from room temperature to similar to 40 K. An abrupt transition from the charge-density-wave induced broad depletion to an opening of a deep pseudo gap was observed within similar to 1 K of the nearly commensurate to commensurate transition temperature. This pseudo gap was deep enough to form ...<br/><br/>I Ekvall, J J Kim, H Olin (1996) <i>CZECHOSLOVAK JOURNAL OF PHYSICS</i> <i></i> <i></i> 46: 2601-2602<br/>

http://publicationslist.org/hakan.olin/refid64 2008-02-16T11:43:49Z

We have studied the atomic and electronic structures of 4Hb-TaS2, which has alternating layers of the 1T and 1H type, at room temperature and 77 K, using a scanning tunneling microscope. Using a layer-by-layer etching technique, we fabricated staircases with alternating layers of the 1T and 1H type. The T-type layers showed the typical root 13 X root 13 charge-density-wave structures, whereas the ...<br/><br/>JJ KIM, H OLIN (1995) <i>PHYSICAL REVIEW B</i> <i></i> <i></i> 52: 20 14388-14391<br/>

http://publicationslist.org/hakan.olin/refid65 2008-02-16T11:43:49Z

Planarized layers of YBa2Cu3O7 (YBCO) were made by etching trenches in SrTiO3 (STO) substrates laser depositing a YBCO film mechanically polishing film down to the substrate surface. These structures exhibited critical temperatures (T-c) of 88 K and a critical current density (J(c)) of 10(6) A/cm(2) at 77 K. The planarized surface was smooth, with a maximum height difference between the YBCO STO o...<br/><br/>PA NILSSON, G BRORSSON, JM ORLIAGUET, E OLSSON, H OLIN, M GUSTAFSSON, T CLAESON (1995) <i>IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY</i> <i></i> <i></i> 5: 2 1653-1656<br/>

http://publicationslist.org/hakan.olin/refid63 2008-02-16T11:43:49Z

YB KIM, H OLIN, SY PARK, JW CHOI, L KOMITOV, M MATUSZCZYK, ST LAGERWALL (1995) <i>APPLIED PHYSICS LETTERS</i> <i></i> <i></i> 66: 17 2218-2219<br/>

http://publicationslist.org/hakan.olin/refid62 2008-02-16T11:43:49Z

The surface of polyimide (PI) films for aligning liquid crystals were studied by means of atomic force microscopy (AFM). The surface of the unrubbed PI films consisted of polymer clusters of different sizes which are randomly distributed over the film area. After rubbing, however, these polymer clusters formed long chains along the rubbing direction. The cluster chains were separated with periodic...<br/><br/>Y B Kim, H S Kim, J S Choi, M Matuszczyk, H Olin, M Buivydas, P Rudquist (1995) <i>MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS</i> <i></i> <i></i> 262: 89-98<br/>

http://publicationslist.org/hakan.olin/refid72 2008-02-16T11:43:49Z

A compact scanning probe microscope for operation in air and liquid is described. The probe techniques implemented are scanning tunnelling microscopy and scanning ion conductance microscopy. The software, electronics, mechanical construction and some representative measurements will be presented here. The compact and concentric microscope head is built around a commercial piezoelectric inchworm mo...<br/><br/>H OLIN (1994) <i>MEASUREMENT SCIENCE & TECHNOLOGY</i> <i></i> <i></i> 5: 8 976-984<br/>

http://publicationslist.org/hakan.olin/refid73 2008-02-16T11:43:49Z

We report a technique for the fabrication of sharp and straight step edges on LaAlO3 (LAO) substrates by ion milling. An electron beam lithography defined amorphous carbon film was used as an etch mask. It had very low ion milling rate and was easily prepared and removed. Atomic force microscopy was used to determine the step profile. YBa2Cu3O7 step edge junctions fabricated at the LAO steps show ...<br/><br/>HR YI, ZG IVANOV, D WINKLER, YM ZHANG, H OLIN, P LARSSON, T CLAESON (1994) <i>APPLIED PHYSICS LETTERS</i> <i></i> <i></i> 65: 9 1177-1179<br/>

http://publicationslist.org/hakan.olin/refid70 2008-02-16T11:43:49Z

A new method is introduced to study transport in a mesoscopic sample. The electric field from an STM-tip is used to locally influence a mesoscopic object. We detect abrupt changes in the mesoscopic signal both as a function of the tip position and tip-sample voltage. They could be interpreted as due to spatial shifts or changes in the activity of scattering centers in the sample.<br/><br/>SE KUBATKIN, H OLIN, P DAVIDSSON, AV DANILOV, T CLAESON (1994) <i>PHYSICA B</i> <i></i> <i></i> 194: 991-992<br/>

http://publicationslist.org/hakan.olin/refid71 2008-02-16T11:43:49Z

A new method is introduced to study electron transport on the mesoscopic scale. A scanning tunnelling microscope (STM) tip is used both to form a point-contact potential probe to a thin film and to affect scattering centres in its vicinity. We detect abrupt changes in the voltage with this probe as a function of both tip position and tip-sample voltage. These changes could be interpreted as due...<br/><br/>SE KUBATKIN, H OLIN, P DAVIDSSON, AV DANILOV, T CLAESON (1994) <i>JOURNAL OF PHYSICS-CONDENSED MATTER</i> <i></i> <i></i> 6: 33 L473-L478<br/>

http://publicationslist.org/hakan.olin/refid69 2008-02-16T11:43:49Z

An ex situ process has been developed to produce thin superconducting Tl2Ba2CaCu2O8 films. The properties of films grown on different substrates using different annealing regimes were studied. Critical temperatures of 103-107 K were measured on films prepared in a broad range of annealing temperatures on SrTiO3, LaAlO3, and Y-ZrO2 substrates. A critical current density, J(c), of 2 x 10(6) A/cm2 at...<br/><br/>LG JOHANSSON, T CLAESON, ZG IVANOV, H OLIN, E OLSSON, D ERTS (1994) <i>JOURNAL OF SUPERCONDUCTIVITY</i> <i></i> <i></i> 7: 4 767-771<br/>

http://publicationslist.org/hakan.olin/refid66 2008-02-16T11:43:49Z

The early stages of growth of high quality YBa2Cu3O7-delta (YBCO) films grown on (001) Y-ZrO2 (YSZ) substrates by pulsed laser deposition have been studied using a combination of atomic force microscopy and transmission electron microscopy. A one unit cell thick YBCO layer and relatively large CuO particles formed in the initial stages. Additional YBCO grew on top of the first layer in the form of...<br/><br/>JA ALARCO, G BRORSSON, H OLIN, E OLSSON (1994) <i>JOURNAL OF APPLIED PHYSICS</i> <i></i> <i></i> 75: 6 3202-3204<br/>

http://publicationslist.org/hakan.olin/refid67 2008-02-16T11:43:49Z

AL BOGDANOV, D ERTS, B NILSSON, H OLIN (1994) <i>JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B</i> <i></i> <i></i> 12: 6 3681-3684<br/>

http://publicationslist.org/hakan.olin/refid68 2008-02-16T11:43:49Z

We have used a dilution refrigerator cooled STM for investigating the vortex state in lead-bismuth alloy 4000 angstrom films. The vortices were recognized by the decreasing dynamic conductance near the gap voltage when the instrument was operated in its normal feed back mode. A clean surface suitable for tunneling was maintained by a 75 angstrom layer of gold deposited on top of the sample film. ...<br/><br/>P DAVIDSSON, H OLIN (1994) <i>PHYSICA B</i> <i></i> <i></i> 194: 375-376<br/>

http://publicationslist.org/hakan.olin/refid76 2008-02-16T11:43:49Z

High-quality YBCO thin films deposited on yttria-stabilized zirconia substrates by laser ablation have been studied by scanning tunneling microscopy in air. The films have been grown at different substrate temperatures, and the measured critical current density (J(c)) and surface resistance (R(s)) have been shown to vary with deposition temperature; where the J(c) decreased with deposition tempera...<br/><br/>H OLIN, G BRORSSON, P DAVIDSSON, ZG IVANOV, PA NILSSON, T CLAESON (1992) <i>ULTRAMICROSCOPY</i> <i></i> <i></i> 42: 734-737<br/>

http://publicationslist.org/hakan.olin/refid74 2008-02-16T11:43:49Z

A scanning tunneling microscope suitable for very low temperatures has been designed, and preliminary testing has been carried out. In order to improve cooling and temperature uniformity the instrument is arranged for operation immersed in the He-3-He-4 mixture inside the mixing chamber of a small dilution refrigerator. A discussion of the specific problems present in the design of this kind of an...<br/><br/>P DAVIDSSON, H OLIN, M PERSSON, S PEHRSON (1992) <i>ULTRAMICROSCOPY</i> <i></i> <i></i> 42: 1470-1475<br/>

http://publicationslist.org/hakan.olin/refid75 2008-02-16T11:43:49Z

Using an STM in air, we have studied three different electropolished Ti surfaces. One sample was analyzed without further treatment. The second was thermally oxidized in air at 500-degrees-C. The third was exposed to an argon glow discharge and then oxidized in pure oxygen. The samples were characterized by Auger spectroscopy prior to STM measurements. Electropolished and thermally oxidized sample...<br/><br/>H OLIN, BO ARONSSON, B KASEMO, J LAUSMAA, M RODAHL (1992) <i>ULTRAMICROSCOPY</i> <i></i> <i></i> 42: 567-571<br/>

http://publicationslist.org/hakan.olin/refid77 2008-02-16T11:43:49Z

High quality superconducting YBa2Cu3O7-delta (YBCO) thin films were fabricated with ex situ co-evaporation on SrTiO3 and in situ laser deposition on (001) MgO substrates. The co-evaporated films gave a superconducting transition temperature, T(c) approximately 90 K, and a critical current density, j(c) approximately 5 x 10(5) A/cm2 at 77 K after an ex situ post anneal at 890-degrees-C. For laser...<br/><br/>JA ALARCO, G BRORSSON, T CLAESON, M DANERUD, U ENGSTROM, ZG IVANOV, PA NILSSON, H OLIN, D WINKLER (1991) <i>PHYSICA SCRIPTA</i> <i></i> <i></i> 44: 1 95-101<br/>

http://publicationslist.org/hakan.olin/refid78 2008-02-16T11:43:49Z

G BRORSSON, JA ALARCO, ZG IVANOV, H OLIN, PA NILSSON, T CLAESON (1990) <i>JOURNAL OF THE LESS-COMMON METALS</i> <i></i> <i></i> 164: 383-390<br/>