Imaging spin-reorientation transitions in consecutive atomic Co layers on Ru(0001).
Phys Rev Lett
; 96(14): 147202, 2006 Apr 14.
Article
em En
| MEDLINE
| ID: mdl-16712115
ABSTRACT
By means of spin-polarized low-energy electron microscopy, we show that the magnetic easy axis of one to three atomic-layer thick cobalt films on Ru(0001) changes its orientation twice during deposition One-monolayer and three-monolayer thick films are magnetized in plane, while two-monolayer films are magnetized out of plane. The Curie temperatures of films thicker than one monolayer are well above room temperature. Fully relativistic calculations based on the screened Korringa-Kohn-Rostoker method demonstrate that only for two-monolayer cobalt films does the interplay between strain, surface, and interface effects lead to perpendicular magnetization.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Espanha