rmcs - Publications List

DOI

R P Borges, R C da Silva, S Magalhães, M M Cruz, M Godinho (2007) Magnetism in Ar implanted ZnO Journal of Physics: Condensed Matter 19: 476207 October

Abstract: ZnO single crystals were implanted with Ar ions with an energy of 100 keV and different fluences. Ferromagnetic behaviour is observed at room temperature after implantation. This behaviour is suppressed after consecutive annealings at 400 and 500 ÂºC. Although trace transition metal impurities have been identified in the virgin samples, it is shown that they cannot account for the observed magnetic behaviour that is assigned to the presence of implantation-induced lattice defects.

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Journal articles

2007	DOI J V Pinto, M M Cruz, R C da Silva, N Franco, A Casaca, E Alves, M Godinho (2007) Anisotropic ferromagnetism induced in rutile single crystals by Co implantation European Physical Journal B 55: 253-260 February Abstract: Notes:
	DOI R P Borges, J V Pinto, R C da Silva, A P Gonçalves, M M Cruz, M Godinho (2007) Ferromagnetism in ZnO doped with Co by ion implantation Journal of Magnetism and Magnetic Materials 316: 2. e191-e194 February Abstract: Notes:
	DOI Y Dumont, N Keller, E Popova, D S Schmool, M Tessier, S Bhattacharya, B Stahl, R M C da Silva, M Guyot (2007) Tuning magnetic properties with off-stoichiometry in oxide thin films: An experiment with Yttrium Iron Garnet as a model system Physical Review B: 76. 104413 September Abstract: Notes:
	DOI B Berini, N Keller, Y Dumont, E Popova, W Noun, M Guyot, J Vigneron, A Etchberry, N Franco, R C da Silva (2007) Reversible phase transformation of LaNiO3-x thin films studied in-situ by spectroscopic ellipsometry Physical Review B 76: 205417 November Abstract: Notes:
	DOI R P Borges, R C da Silva, S Magalhães, M M Cruz, M Godinho (2007) Magnetism in Ar implanted ZnO Journal of Physics: Condensed Matter 19: 476207 October Abstract: ZnO single crystals were implanted with Ar ions with an energy of 100 keV and different fluences. Ferromagnetic behaviour is observed at room temperature after implantation. This behaviour is suppressed after consecutive annealings at 400 and 500 ÂºC. Although trace transition metal impurities have been identified in the virgin samples, it is shown that they cannot account for the observed magnetic behaviour that is assigned to the presence of implantation-induced lattice defects. Notes:

	DOI B Savoini, R González, J V Pinto, R C da Silva, E Alves (2007) Copper and cobalt nanocolloids in implanted MgO crystals Nuclear Instruments and Methods in Physics Research B 257: 563–567 January Abstract: Notes:
	DOI B Savoini, R González, R C da Silva, E Alves (2007) Lithium ion implantation and annealing of MgO single crystals Nuclear Instruments and Methods in Physics Research B 257: 558–562 January Abstract: Notes:
	DOI M M Cruz, J V Pinto, R C da Silva, E Alves, R Gonzalez, M Godinho (2007) Relaxation behaviour of Co and Ni implanted MgO Journal of Magnetism and Magnetic Materials 316: 2. e776-8 March Abstract: Notes:
	DOI M P Gispert, A P Serro, R Colaço, A M Botelho do Rego, E Alves, R C da Silva, P Brogueira, E Pires, B Saramago (2007) Tribological behaviour of Cl-implanted TiN coatings for biomedical applications Wear 262: 1337-1345 February Abstract: Notes:
	DOI C Marques, N Franco, L C Alves, R C da Silva, E Alves, G Safran, C J McHargue (2007) Synthesis of ZnO nanocrystals in sapphire by ion implantation and vacuum annealing Nuclear Instruments and Methods in Physics Research, B 257: 515-518 January Abstract: Notes:
	DOI C Marques, N Franco, L C Alves, R C da Silva, E Alves (2007) Optical and structural behaviour of Cu implanted sapphire Surface and Coatings Technology 201: 8190–8196 August Abstract: Notes:
2006	DOI M Vilarigues, L M Prudêncio, L C Alves, R C da Silva (2006) Cr ion impantation into Ti Part II. Cr diffusivity Surface and Coatings Technology 200: 12-13. 3913– 3917 March Abstract: Notes:
	A L Stepanov, C Marques, E Alves, R C da Silva, M R Silva, R A Ganeev, A I Ryasnyansky, T Usmanov (2006) Ion synthesis and optical properties of gold nanoparticles in an Al2O3 matrix Technical Physics 51: 11. 1474-1481 Abstract: Notes:
	DOI L M Prudêncio, L Paramês, O Conde, R C da Silva (2006) Cr ion implantation into Ti – Part I: formation of intermetallic Laves phase Surface and Coatings Technology 200: 12-13. 3907– 3912 March Abstract: Notes:
	DOI M Vilarigues, R C da Silva (2006) Characterization of potash-glass corrosion in aqueous solution by ion beam and IR spectroscopy Journal of Non-Crystalline Solids 352: 5368–5375 July Abstract: Notes:

	DOI R A Ganeev, A I Ryasnyanky, A L Stepanov, T Usmanov, C Marques, R C da Silva, E Alves (2006) Investigation of nonlinear optic characteristics of composite materials based on sapphire with Silver, Copper, and Gold by the reflection Z-scan method Optics and Spectroscopy 101: 4. 615-622 Abstract: Notes:
2005	DOI J V Pinto, M M Cruz, R C da Silva, E Alves, R Gonzáles, M Godinho (2005) Magnetic nanoscale aggregates of cobalt and nickel in MgO single crystals European Physical Journal B 45: 331-338 July Abstract: Notes:
	DOI J V Pinto, M M Cruz, R C da Silva, E Alves, M Godinho (2005) Magnetic properties of TiO2 rutile implanted with Ni and Co Journal of Magnetism and Magnetic Materials 294: e73-e76 Abstract: Notes:
	A L Stepanov, C Marques, E Alves, R C da Silva, M R Silva, R A Ganeev, A I Ryasnyansky, T Usmanov (2005) Nonlinear optical properties of gold nanoparticles synthesized by ion implantation in sapphire matrix Technical Physics Letters 31: 8. 702–705 Abstract: Notes:
	DOI R A Ganeev, A I Ryasnyanky, A L Stepanov, C Marques, R C da Silva, E Alves (2005) Application of RZ-scan technique for investigation of nonlinear refraction of sapphire doped with Ag, Cu, and Au nanoparticles Optics Communications 253: 1-3. 205-213 Abstract: Notes:
Conference papers

2007	W R Branford, J R Neal, C L Spencer, G A Gehring, A M Fox, N Popovici, R C da Silva, O Conde, L F Cohen (2007) Magneto-Optical properties of Co-doped TiO2 thin films grown by Pulsed Laser Deposition In: Proceedings of the ICPS28, 28th International Conference on the Physics of Semiconductors Edited by:W. Jantsch and F. Schaeffler. 1199-1200 American Institute of Physics Abstract: Notes:
2006	C Marques, N Franco, R C da Silva, A Wemans, M J P Maneira, E Alves (2006) Characterization of nickel implanted α-Al2O3 In: Proceedings of "Materials-2005", XII Portuguese Materials Society Meeting and III International Materials Symposium Edited by:Materials Science Forum, Vols 514-516. 348-352 Trans. Tech. Publications Abstract: Notes:
	DOI C Marques, R C da Silva, A Weemans, M J P Maneira, A Kozanecki, E Alves (2006) Optical properties tailoring by high fluence implantation of Ag ions on sapphire In: Proceedings of the 14th International Conference on Ion Beam Modification of Materials Edited by:Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 242, Issues 1-2. 104–108 Elsevier B.V. Abstract: Notes:
	DOI N Popovici, E Jimenez, R C da Silva, W R Branford, L F Cohen, O Conde (2006) Optical and magnetic properties of Co-doped TiO2 thin films grown by pulsed laser deposition In: Proceedings of the 21st International Conference on Amorphous and Nanocrystalline Semiconductors - Science and Technology Edited by:Journal of Non-Crystalline Solids, Volume 352, Issues 9-20. 1486-1489 Elsevier B.V. Abstract: Notes:
	DOI C Marques, N Franco, A Kozanecki, R C da Silva, E Alves (2006) Optical and structural behaviour of Mn implanted sapphire In: Proceedings of the 13th International Conference on Radiation Effects in Insulators (REI-2005) Edited by:Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 250 Issues 1-2. 90–94 Elsevier B.V. Abstract: Notes:
	DOI E Alves, J V Pinto, R C da Silva, M Peres, M J Soares, T Monteiro (2006) Optical behaviour of Er doped rutile by ion implantation In: Proceedings of the 13th International Conference on Radiation Effects in Insulators (REI-2005) Edited by:Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 250 Issues 1-2. 363–367 Elsevier B.V. Abstract: Notes:
2005	DOI C Marques, A Weemans, M J P Maneira, A Kozanecki, R C da Silva, E Alves (2005) Site location and optical properties of Eu implanted sapphire In: Proceedings of the Eighth European Conference on Accelerators in Applied Research and Technology (ECAART-8) Edited by:J.-C. Dran and T. Calligaro, Nuclear Instruments and Methods in Physics Research B, Vol. 240, Issues 1-2. 409–414 Elsevier B.V. Abstract: Notes:

Journal articles

Conference papers