We review the most significant results obtained in the framework of the microscopic approach to a systematic study of magnetic dynamics in two-dimensional ferromagnetic and antiferromagnetic materials with a strong Rashba spin-orbit coupling. For model systems, we discuss the microscopic derivation of the Gilbert damping tensor, spin-orbit and spin-transfer torques, and symmetric and antisymmetric exchange interactions. It is shown that in both antiferromagnetic and ferromagnetic systems, the presence of a sufficiently strong spin-orbit coupling leads to an anisotropy of spin torques and Gilbert damping. We focus on an analysis of spin-orbit torques in a two-dimensional Rashba antiferromagnet. We also address the possibility of switching the antiferromagnetic order parameter via short current pulses in the plane of the sample.

Keywords: ferromagnet, antiferromagnet, spin-orbit coupling, Dzyaloshinskii—Moriya interaction, spin-transfer torque, spin-orbit torque, Gilbert damping PACS: 75.10.−b, 75.30.−m, 75.40.Cx, 75.50.Ee (all) DOI: 10.3367/UFNe.2021.04.038964 URL: https://ufn.ru/en/articles/2022/3/a/ 000834747900001 2-s2.0-85131135379 2022PhyU...65..215P Citation: Pervishko A A, Yudin D I "Microscopic approach to the description of spin torques in two-dimensional Rashba ferromagnets and antiferromagnets" Phys. Usp. 65 215–226 (2022) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 14th, November 2020, revised: 7th, April 2021, accepted: 7th, April 2021 Оригинал: Первишко А А, Юдин Д И «Микроскопический подход к описанию спиновых моментов в двумерных анти- и ферромагнетиках Рашбы» УФН 192 233–246 (2022); DOI: 10.3367/UFNr.2021.04.038964