Unidirectional anisotropy in ultrathin transition-metal films

Article

关键词: MAGNETIC ANISOTROPIES;    RESONANCE;    EXCHANGE;    ALLOYS;    CO;   

DOI  :  10.1103/PhysRevB.58.11138

来源: SCIE

【 摘 要 】

Unidirectional magnetic anisotropies in low-symmetry magnetic thin films such as cobalt on vicinal copper surfaces are investigated. Possible explanations of the observed uniaxial anisotropies are competing anisotropy (CA) coefficients and Dzyaloshinskii-Moriya (DM) interactions. Unidirectional CA is an interesting mechanism occurring in low-symmetry magnets and involves neither antiferromagnetic exchange nor spin canting. It is visible in the easy-cone regime and decides, for example, whether the preferential magnetization direction points up or down a stepped surface. In the case of Co/Cu(11n) films, however, the anisotropy direction speaks in favor of DM-type interactions, [SO163-1829(98)03541-3].

【 授权许可】

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