5 years ago

Effective uniaxial anisotropy in easy-plane materials through nanostructuring.

M. Gusenbauer, H. Oezelt, D. Suess, T. Schrefl, J. Fischbacher, A. Kovacs

Permanent magnet materials require a high uniaxial magneto-crystalline anisotropy. Exchange coupling between small crystallites with easy-plane anisotropy induces an effective uniaxial anisotropy if arranged accordingly. Nanostructuring of materials with easy-plane anisotropy is an alternative way to create hard-magnetic materials. The coercivity increases with decreasing feature size. The resulting coercive field is about 12 percent of the anisotropy field for a crystal size of 3.4 times the Bloch parameter.

Publisher URL: http://arxiv.org/abs/1711.03144

DOI: arXiv:1711.03144v1

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