Theory of current-driven magnetization dynamics in inhomogeneous ferromagnets

Yaroslav Tserkovnyak, Arne Brataas, Gerrit E.W. Bauer

Research output: Contribution to journalArticlepeer-review

110 Citations (Scopus)

Abstract

We give a brief account of recent developments in the theoretical understanding of the interaction between electric currents and inhomogeneous ferromagnetic order parameters. We start by discussing the physical origin of the spin torques responsible for this interaction and construct a phenomenological description. We then consider the electric current-induced ferromagnetic instability and domain-wall motion. Finally, we present a microscopic justification of the phenomenological description of current-driven magnetization dynamics, with particular emphasis on the dissipative terms, the so-called Gilbert damping α and the β component of the adiabatic current-driven torque.

Original languageEnglish
Pages (from-to)1282-1292
Number of pages11
JournalJournal of Magnetism and Magnetic Materials
Volume320
Issue number7
DOIs
Publication statusPublished - 2008 Apr
Externally publishedYes

Keywords

  • Ferromagnetism
  • Magnetic domain walls
  • Magnetic instabilities
  • Spin transfer
  • Spin waves
  • Spin-polarized transport

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Theory of current-driven magnetization dynamics in inhomogeneous ferromagnets'. Together they form a unique fingerprint.

Cite this