Crossover from spin-flop coupling to collinear spin alignment in antiferromagnetic/ferromagnetic nanostructures.

Folven, Erik; Scholl, Andreas; Young, Anthony; Retterer, Scott T; Boschker, Jos E; Tybell, Thomas; Takamura, Yayoi; Grepstad, Jostein K

Folven, Erik; Scholl, Andreas; Young, Anthony; Retterer, Scott T; Boschker, Jos E; Tybell, Thomas; Takamura, Yayoi; Grepstad, Jostein K.

Afiliación

Folven E; Department of Electronics and Telecommunications, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway. folven@ntnu.no

Nano Lett ; 12(5): 2386-90, 2012 May 09.

Article en En | MEDLINE | ID: mdl-22468652

RESUMEN

The technologically important exchange coupling in antiferromagnetic/ferromagnetic bilayers is investigated for embedded nanostructures defined in a LaFeO(3)/La(0.7)Sr(0.3)MnO(3) bilayer. Exploiting the element specificity of soft X-ray spectromicroscopy, we selectively probe the magnetic order in the two layers. A transition from perpendicular to parallel spin alignment is observed for these nanostructures, dependent on size and crystalline orientation. The results show that shape-induced anisotropy in the antiferromagnet can override the interface exchange coupling in spin-flop coupled nanostructures.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2012 Tipo del documento: Article País de afiliación: Noruega Pais de publicación: Estados Unidos

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