Appearance of room-temperature ferromagnetism in Cu-doped TiO2-δ films
We report here the unexpected observation of significant room-temperature ferromagnetism in a semiconductor doped with nonmagnetic impurities, Cu-doped TiO2 thin films grown by pulsed laser deposition. The magnetic moment, calculated from the magnetization curves, resulted surprisingly large, about...
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2005
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| LEADER | 08103caa a22008057a 4500 | ||
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| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Duhalde, Stella Maris | |
| 245 | 1 | 0 | |a Appearance of room-temperature ferromagnetism in Cu-doped TiO2-δ films |
| 260 | |c 2005 | ||
| 270 | 1 | 0 | |m Duhalde, S.; Laboratorio de Ablación Láser, Depto. de Física, Universidad de Buenos Aires, Paseo Colón 850, 1063 Buenos Aires, Argentina |
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| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a We report here the unexpected observation of significant room-temperature ferromagnetism in a semiconductor doped with nonmagnetic impurities, Cu-doped TiO2 thin films grown by pulsed laser deposition. The magnetic moment, calculated from the magnetization curves, resulted surprisingly large, about 1.5μB per Cu atom. A large magnetic moment was also obtained from ab initio calculations, but only if an oxygen vacancy in the nearest-neighbor shell of Cu was present. This result suggests that the role of oxygen vacancies is crucial for the appearance of ferromagnetism. The calculations also predict that Cu doping favors the formation of oxygen vacancies. © 2005 The American Physical Society. |l eng | |
| 593 | |a Laboratorio de Ablación Láser, Depto. de Física, Universidad de Buenos Aires, Paseo Colón 850, 1063 Buenos Aires, Argentina | ||
| 593 | |a Laboratorio de Bajas Temperaturas, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, 1428 Buenos Aires, Argentina | ||
| 593 | |a Departamento de Física-Instituto de Física la Plata (CONICET), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. No. 67, 1900 La Plata, Argentina | ||
| 593 | |a Departamento de Física, Comisión Nacional de Energía Atómica, Av. del Libertador 8250, 1429 Buenos Aires, Argentina | ||
| 700 | 1 | |a Vignolo, M.F. | |
| 700 | 1 | |a Golmar, Federico | |
| 700 | 1 | |a Chiliotte, Claudio Ezequiel | |
| 700 | 1 | |a Torres, C.E.R. | |
| 700 | 1 | |a Errico, Leonardo Antonio | |
| 700 | 1 | |a Cabrera, A.F. | |
| 700 | 1 | |a Rentería, Mario | |
| 700 | 1 | |a Sánchez, F.H. | |
| 700 | 1 | |a Weissmann, M. | |
| 773 | 0 | |d 2005 |g v. 72 |k n. 16 |p Phys. Rev. B Condens. Matter Mater. Phys. |x 10980121 |t Physical Review B - Condensed Matter and Materials Physics | |
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| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_10980121_v72_n16_p_Duhalde |y Handle |
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