Domain-wall dynamics and spin-wave excitations with spin-transfer torques

Z. Li, S. Zhang

Research output: Contribution to journalArticle

239 Scopus citations

Abstract

A spin torque based on the generalized angular momentum transfer mechanism was proposed. The spin torque was incorporated into Landau-lifshitz-Gilbert equation to describe spin wave excitations and domain-wall distortion and propagation. It was found that the spin torque had form identical to that in magnetic multilayers for spatially nonuniform magnetization. The spin torque can generate bulk and surface spin excitations for point-contact experiments. The spin current excite surface or interface spin modes due to occurence of current density near the interface between the nonmagnetic probe and magnetic layer.

Original languageEnglish (US)
Article number207203
Pages (from-to)207203-1-207203-4
JournalPhysical review letters
Volume92
Issue number20
DOIs
StatePublished - May 21 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Domain-wall dynamics and spin-wave excitations with spin-transfer torques'. Together they form a unique fingerprint.

  • Cite this