| Texto completo | |
| Autor(es): Mostrar menos - |
Fernandes, V.
[1]
;
Mossanek, R. J. O.
[2]
;
Schio, P.
[3]
;
Klein, J. J.
[1]
;
de Oliveira, A. J. A.
[3]
;
Ortiz, W. A.
[3]
;
Mattoso, N.
[2]
;
Varalda, J.
[2]
;
Schreiner, W. H.
[2]
;
Abbate, M.
[2]
;
Mosca, D. H.
[2]
Número total de Autores: 11
|
| Afiliação do(s) autor(es): | [1] Univ Fed Parana, PIPE, BR-81531990 Curitiba, PR - Brazil
[2] Univ Fed Parana, Dept Fis, BR-81531990 Curitiba, PR - Brazil
[3] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physical Review B; v. 80, n. 3 JUL 2009. |
| Citações Web of Science: | 104 |
| Resumo | |
We investigate experimentally and theoretically the origin of magnetism in nanocrystalline-undoped ceria films. Our results are consistent with density-functional calculations showing that both oxygen and cerium vacancies lead to ferromagnetism. Although the number of cerium vacancies is smaller than that of oxygen vacancies, the relatively high magnetic moment of the former might result in a substantial contribution to the magnetic properties. Diluted defect magnetism is suggested as a universal feature of ferromagnetism in nonmagnetic oxides without magnetic impurities. (AU) | |
| Processo FAPESP: | 08/10276-5 - Investigação de nanoestruturas semicondutoras híbridas magnéticas e materiais multiferróicos |
| Beneficiário: | Adilson Jesus Aparecido de Oliveira |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |