| Full text | |
| Author(s): Show less - |
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]
Total Authors: 11
|
| Affiliation: | [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
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Physical Review B; v. 80, n. 3 JUL 2009. |
| Web of Science Citations: | 104 |
| Abstract | |
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) | |
| FAPESP's process: | 08/10276-5 - Investigation of hybrid magnetic semicondutor nanostructures and multi-ferroic materials |
| Grantee: | Adilson Jesus Aparecido de Oliveira |
| Support Opportunities: | Regular Research Grants |