Quasi-ballistic magnetization switching in Co/Pt dots with perpendicular magnetization

N. Kikuchi, Y. Suyama, S. Okamoto, O. Kitakami, T. Shimatsu

研究成果: Article査読

3 被引用数 (Scopus)

抄録

A transverse pulse magnetic field with fast rise time generates precessional motion of magnetization due to finite torque. If the torque is sufficiently large enough magnetization may switch irreversibly via a ballistic trajectory even when energy barrier exists between two energetically stable states. We demonstrate magnetization switching in Co/Pt multilayer nanostructured dots via quasi-ballistic magnetization motion excited by a pulse field with subnanoseconds rise time. The quasi-ballistic switching has been found when the rise time of a pulse field is comparable to the half of magnetization precession period, beating the Stoner-Wohlfarth switching limit.

本文言語English
論文番号112409
ジャーナルApplied Physics Letters
104
11
DOI
出版ステータスPublished - 2014 3 17

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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