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Microscopic approach for the description of spin torques in two-dimensional Rashba anti- and ferromagnets

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Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow, 121205, Russian Federation

This review presents the most significant results obtained lately using microscopic approach that are of greatimportance for the systematic study of magnetic dynamics in low-dimensional anti- and ferromagnetic materials withstrong Rashba-type spin-orbit interaction. In particular, for theoretical models the microscopic description of Gilbertdamping and spin torques, as well as values of symmetric and antisymmetric exchange interactions are discussed.It is shown that in anti- and ferromagnetic materials the presence of a sufficiently strong spin-orbit interactionleads to the anisotropy of Gilbert damping tensor and spin torques. A significant part of the review is devoted to adiscussion of the theoretical studies of spin-orbit torques in two-dimensional Rashba antiferromagnet and its effecton magnetisation vector switching under the sequence of external current pulses.

Keywords: ferromagnets, antiferromagnets, spin-orbit coupling, Dzyaloshinskii—Moriya interaction, spin-transfertorque, spin-orbit torque, Gilbert damping
PACS: 75.50.Ee, 75.40.Cx, 75.30.−m, 75.10.−b (all)
DOI: 10.3367/UFNe.2021.04.038964
Citation: Pervishko A A, Yudin D I "Microscopic approach for the description of spin torques in two-dimensional Rashba anti- and ferromagnets" Phys. Usp., accepted

Received: 14th, November 2020, revised: 7th, April 2021, 7th, April 2021

Оригинал: Первишко А А, Юдин Д И «Микроскопический подход к описанию спиновых моментов в двумерных анти- и ферромагнетиках Рашбы» УФН, принята к публикации; DOI: 10.3367/UFNr.2021.04.038964

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