Effects of spin current on ferromagnets (invited)

Z. Li, J. He, S. Zhang

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

When a spin-polarized current flows through a ferromagnet, the local magnetization receives a spin torque. Two consequences of this spin torque are studied. First, the uniformly magnetized ferromagnet becomes unstable if a sufficiently large current is applied. The characteristics of the instability include spin-wave generation and magnetization chaos. Second, the spin torque has profound effects on the structure and dynamics of the magnetic domain wall. A detailed analysis on the domain-wall mass, kinetic energy, and wall depinning threshold is given.

Original languageEnglish (US)
Article number08Q702
JournalJournal of Applied Physics
Volume99
Issue number8
DOIs
StatePublished - May 25 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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