Spin pumping in the presence of spin-orbit coupling
Spin pumping and related phenomena have been observed recently in heavy metals and topological insulators, where the spin-orbit coupling plays an essential role. We have developed a spin-pumping formalism that explicitly includes the spin-orbit coupling at interfaces and disorder in the layers. Spin...
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| Published in | Physical review letters Vol. 114; no. 12; p. 126602 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
27.03.2015
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| Online Access | Get more information |
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| Summary: | Spin pumping and related phenomena have been observed recently in heavy metals and topological insulators, where the spin-orbit coupling plays an essential role. We have developed a spin-pumping formalism that explicitly includes the spin-orbit coupling at interfaces and disorder in the layers. Spin pumping across an interface with spin-orbit coupling and the attendant backflow are treated on an equal footing. We resolve some long-standing issues on the conflicting conclusions about the spin-diffusion length for Pt, and the origin of spin-memory loss at interfaces with heavy metals. In addition, we predict some heretofore unanticipated spin-pumping phenomena. |
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| ISSN: | 1079-7114 |
| DOI: | 10.1103/physrevlett.114.126602 |