Prediction of giant spin motive force due to Rashba spin-orbit coupling
SCIE
SCOPUS
- Title
- Prediction of giant spin motive force due to Rashba spin-orbit coupling
- Authors
- Kim, KW; Moon, JH; Lee, KJ; Lee, HW
- Date Issued
- 2012-05-23
- Publisher
- AMER PHYSICAL SOC
- 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 alpha(R), the coupling generates the spin-dependent electric field [ +/- (alpha(R)m(e)/eh)((Z) over cap X partial derivative m/partial derivative 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.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12495
- DOI
- 10.1103/PhysRevLett.108.217202
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 108, no. 21, page. 217202, 2012-05-23
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