1.
Phys Rev Lett
; 95(21): 217203, 2005 Nov 18.
Artículo
en Inglés
| MEDLINE
| ID: mdl-16384176
RESUMEN
We reexamine the mechanism of ferromagnetism in doped TiO(2) anatase, using epitaxial Cr:TiO(2) with excellent structural quality as a model system. In contrast to highly oriented but defective Cr:TiO(2) (approximately 0.5 micro(b)/Cr), these structurally superior single crystal films exhibit negligible ferromagnetism. Similar results were obtained for Co:TiO(2). We show for the first time that charge-compensating oxygen vacancies alone, as predicted by F-center mediated exchange, are not sufficient to activate ferromagnetism. Instead, the onset of ferromagnetism correlates with the presence of structural defects.
2.
Recent Results Cancer Res
; 63: 77-84, 1978.
Artículo
en Inglés
| MEDLINE
| ID: mdl-705016