Influence of interfacial magnons on spin transfer torque in magnetic tunnel junctions

A. Manchon, Shufeng Zhang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The role of interfacial electron-magnon interaction in a noncollinear magnetic tunnel junction is investigated using the transfer Hamiltonian method. It is shown that the interfacial electron-magnon scattering modifies the bias dependence of both components of the spin-transfer torque. In particular, we find that at low temperature, the magnons emission adds a quadratic contribution and at finite temperature, both quadratic and linear terms appear. These contributions can explain recent experimental results on the bias dependence of spin-transfer torque.

Original languageEnglish (US)
Article number174401
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number17
DOIs
StatePublished - May 1 2009

Fingerprint

Tunnel junctions
tunnel junctions
magnons
torque
Torque
Hamiltonians
Electron scattering
electron scattering
Temperature
Electrons
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Influence of interfacial magnons on spin transfer torque in magnetic tunnel junctions. / Manchon, A.; Zhang, Shufeng.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 79, No. 17, 174401, 01.05.2009.

Research output: Contribution to journalArticle

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