Minimization of Ohmic losses for domain wall motion in a ferromagnetic nanowire

O. A. Tretiakov, Y. Liu, Ar Abanov

研究成果: Article査読

39 被引用数 (Scopus)

抄録

We study current-induced domain-wall motion in a narrow ferromagnetic wire. We propose a way to move domain walls with a resonant time-dependent current which dramatically decreases the Ohmic losses in the wire and allows driving of the domain wall with higher speed without burning the wire. For any domain-wall velocity we find the time dependence of the current needed to minimize the Ohmic losses. Below a critical domain-wall velocity specified by the parameters of the wire the minimal Ohmic losses are achieved by dc current. Furthermore, we identify the wire parameters for which the losses reduction from its dc value is the most dramatic.

本文言語English
論文番号217203
ジャーナルPhysical review letters
105
21
DOI
出版ステータスPublished - 2010 11月 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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