Prediction of giant spin motive force due to Rashba spin-orbit coupling

Kyoung Whan Kim, Jung Hwan Moon, Kyoung Jin Lee, Hyun Woo Lee

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

Magnetization dynamics in a ferromagnet can induce a spin-dependent electric field through a spin motive force. Spin current generated by the spin-dependent electric field can in turn modify the magnetization dynamics through spin-transfer torque. While this feedback effect is usually weak and thus ignored, we predict that in Rashba spin-orbit coupling systems with a large Rashba parameter α R, the coupling generates the spin-dependent electric field [±(α Rm e/e)(z×-m/-t)], which can be large enough to modify the magnetization dynamics significantly. This effect should be relevant for device applications based on ultrathin magnetic layers with strong Rashba spin-orbit coupling.

Original languageEnglish
Article number217202
JournalPhysical Review Letters
Volume108
Issue number21
DOIs
Publication statusPublished - 2012 May 23

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orbits
predictions
magnetization
electric fields
spin dynamics
torque

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Prediction of giant spin motive force due to Rashba spin-orbit coupling. / Kim, Kyoung Whan; Moon, Jung Hwan; Lee, Kyoung Jin; Lee, Hyun Woo.

In: Physical Review Letters, Vol. 108, No. 21, 217202, 23.05.2012.

Research output: Contribution to journalArticle

Kim, Kyoung Whan ; Moon, Jung Hwan ; Lee, Kyoung Jin ; Lee, Hyun Woo. / Prediction of giant spin motive force due to Rashba spin-orbit coupling. In: Physical Review Letters. 2012 ; Vol. 108, No. 21.
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