Spin-orbit torque in a bulk perpendicular magnetic anisotropy Pd/FePd/MgO system.

Junyeon Kim, Jaivardhan Sinha, Masamitsu Hayashi, Michihiko Yamanouchi, Shunsuke Fukami, Tetsuhiro Suzuki, Seiji Mitani, Hideo Ohno, Frank Freimuth, Stefan Bl??gel, Yuriy Mokrousov, Paul M. Haney, Hyun Woo Hwang-Rae Lee, Kyung Jin Kyujoon Lee, Aurélien Manchon, M. D. Stiles, Jaehun Cho, Young-Ha Choi, Chun-Yeol You, Myung-Hwa JungFrédéric Bonell, Yoichi Shiota, Shinji Miwa, Yoshishige Suzuki, Hamed Ben Mohamed Saidaoui, Y. Otani, Giovanni Vignale, I. V. Tokatly, Kyung Taec Kim, Chunmei Zhang, Andrew D. Shiner, Sean E. Kirkwood, Eugene Frumker, Genevieve Gariepy, Andrei Naumov, D. M. Villeneuve, P. B. Corkum

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

We theoretically study the crossover between spin Hall effect and spin swapping, a recently predicted phenomenon that consists in the interchange between the current flow and its spin polarization directions [Lifshits and Dyakonov, Phys. Rev. Lett. 103, 186601 (2009)]. Using a tight-binding model with spin-orbit coupled disorder, spin Hall effect, spin relaxation and spin swapping are treated on equal footing. We demonstrate that spin Hall effect and spin swapping present very different dependences as a function of the spin-orbit coupling and disorder strengths. As a consequence, we show that spin swapping may even exceed spin Hall effect. Three set-ups are proposed for the experimental observation of the spin swapping effect in metals.
Original languageEnglish (US)
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
DOIs
StatePublished - 2013

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