Effects of surface anisotropy on magnetic vortex core

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:361

Article

Pylypovskyi, Oleksandr V.¹  Sheka, Denis D.¹  Kravchuk, Volodymyr P.²  Gaididei, Yuri² 

[1] Taras Shevchenko Natl Univ Kiev, UA-01601 Kiev, Ukraine

[2] Inst Theoret Phys, UA-03143 Kiev, Ukraine

关键词: Nanodot;    Magnetic vortex;    Vortex core;    Surface anisotropy;    Spin-lattice simulations;   

DOI  :  10.1016/j.jmmm.2014.02.094

来源: Elsevier

【 摘 要 】

The vortex core shape in the three dimensional Heisenberg magnet is essentially influenced by a surface anisotropy. We predict that depending of the surface anisotropy type there appears barrel- or pillow-shaped deformation of the vortex core along the magnet thickness. Our theoretical study is well confirmed by spin-lattice simulations. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

Free