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28 March 2024
 
  » pubmed » pmid16712115

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Imaging spin-reorientation transitions in consecutive atomic Co layers on Ru(0001)
Farid El Gabaly ; Silvia Gallego ; Carmen Muņoz ; Laszlo Szunyogh ; Peter Weinberger ; Christof Klein ; Andreas K Schmid ; Kevin F McCarty ; Juan de la Figuera ;
Date 14 Apr 2006
Journal Phys Rev Lett, 96 (14), 147202
AbstractBy 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.
Source PubMed, pmid16712115
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