Transition between onion states and vortex states in exchange-coupled Ni-FeMn-Ir asymmetric ring dots

Isao Sasaki, Ryoichi Nakatani, Yasushi Endo, Yoshio Kawamura, Masahiko Yamamoto, Takashi Takenaga, Sunao Aya, Takeharu Kuroiwa, Sadeh Beysen, Hiroshi Kobayashi

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The transition between onion states and vortex states in exchange-coupled Ni-FeMn-Ir asymmetric ring dots has been investigated. A direction of domain wall motion, during the transition from the single-domain state to the vortex state via the onion state, depends on a sweep direction of an external field. This dependence fixes the directions of vortical magnetizations in the vortex states. The derivative of the amount of the domain wall motion with respect to the external field depends on the sweep direction of external field, and thus the hysteresis loop becomes asymmetric.

本文言語English
論文番号08G303
ジャーナルJournal of Applied Physics
99
8
DOI
出版ステータスPublished - 2006
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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