Spin-wave excitation in magnetic insulators by spin-transfer torque

Jiang Xiao, Gerrit E.W. Bauer

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

We study the excitation of spin waves in magnetic insulators by the current-induced spin-transfer torque. We predict preferential excitation of surface spin waves induced by an easy-axis surface anisotropy with critical current inversely proportional to the penetration depth and surface anisotropy. The surface modes strongly reduce the critical current and enhance the excitation power of the current-induced magnetization dynamics.

Original languageEnglish
Article number217204
JournalPhysical review letters
Volume108
Issue number21
DOIs
Publication statusPublished - 2012 May 23

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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