Chiral damping, chiral gyromagnetism, and current-induced torques in textured one-dimensional Rashba ferromagnets
Freimuth F, Bluegel S, Mokrousov Y (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 96
Article Number: 104418
Journal Issue: 10
DOI: 10.1103/PhysRevB.96.104418
Abstract
We investigate Gilbert damping, spectroscopic gyromagnetic ratio, and current-induced torques in the one-dimensional Rashba model with an additional noncollinear magnetic exchange field. We find that the Gilbert damping differs between left-handed and right-handed Néel-type magnetic domain walls due to the combination of spatial inversion asymmetry and spin-orbit interaction (SOI), consistent with recent experimental observations of chiral damping. Additionally, we find that also the spectroscopic g factor differs between left-handed and right-handed Néel-type domain walls, which we call chiral gyromagnetism. We also investigate the gyromagnetic ratio in the Rashba model with collinear magnetization, where we find that scattering corrections to the g factor vanish for zero SOI, become important for finite spin-orbit coupling, and tend to stabilize the gyromagnetic ratio close to its nonrelativistic value.
Involved external institutions
Germany (DE)How to cite
APA:
Freimuth, F., Bluegel, S., & Mokrousov, Y. (2017). Chiral damping, chiral gyromagnetism, and current-induced torques in textured one-dimensional Rashba ferromagnets. Physical Review B, 96(10). https://doi.org/10.1103/PhysRevB.96.104418
MLA:
Freimuth, Frank, Stefan Bluegel, and Yuriy Mokrousov. "Chiral damping, chiral gyromagnetism, and current-induced torques in textured one-dimensional Rashba ferromagnets." Physical Review B 96.10 (2017).
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