From bubble to Skyrmion: Dynamic transformation mediated by a strong magnetic tip

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:305

Article

Kirakosyan, A. S. ; Pokrovsky, V. L.

关键词: Skyrmion;    RKKY;    magnetic tip;   

DOI  :  10.1016/j.jmmm.2006.01.113

来源: Elsevier

【 摘 要 】

Skyrmions in thin metallic ferromagnetic films are stable due to competition between the RKKY interaction and uniaxial magnetic anisotropy. We study static nonlinear excitations in magnetic film in the presence of strong cylindrical magnetic tip of nanometer size. We mimic the RKKY interaction by the next-nearest-neighbors ferromagnetic and antiferromagnetic exchange interactions. We demonstrate analytically and numerically dissipative transformation of a bubble created by a strong magnetic tip into a stable Skyrmion. (C) 2006 Elsevier B.V. All rights reserved.

【 授权许可】

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