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

Research output: Contribution to journalArticle

231 Citations (Scopus)

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)
Pages (from-to)207203-207201
Number of pages3
JournalPhysical Review Letters
Volume92
Issue number20
DOIs
StatePublished - May 21 2004
Externally publishedYes

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wave excitation
magnons
domain wall
torque
momentum transfer
angular momentum
current density
magnetization
propagation
probes
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Domain-wall dynamics and spin-wave excitations with spin-transfer torques. / Li, Z.; Zhang, Shufeng.

In: Physical Review Letters, Vol. 92, No. 20, 21.05.2004, p. 207203-207201.

Research output: Contribution to journalArticle

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