Park, Eun-Sang Lee, DongJoon Lee, OukJae Min, Byoung-Chul Koo, Hyun Cheol Kim, Kyoung-Whan Lee, Kyung-Jin 2024-01-19T15:02:35Z 2024-01-19T15:02:35Z 2022-01-10 2021-04 2469-9950 https://pubs.kist.re.kr/handle/201004/117181 We theoretically investigate spin-orbit torques in insulator/ferromagnet/normal-metal structures with a focus on interfacial spin-orbit coupling effect at an insulator/ferromagnet interface. Based on the spin drift-diffusion formalism generalized to consider transverse spin currents in a ferromagnet and the boundary condition to consider transverse spin currents leaving from a ferromagnet, we find that interfacial spin-orbit coupling at the insulator/ferromagnet interface contributes to dampinglike spin-orbit torque, which is important for current-driven magnetization dynamics, even when the interfacial spin-orbit coupling generates the only fieldlike component. We also calculate spin-orbit torques in a single ferromagnet sandwiched by two dissimilar insulators, which provides additional information about interfacial spin-orbit interaction at insulator/ferromagnet interfaces. English AMER PHYSICAL SOC Effect of the spin-orbit interaction at insulator/ferromagnet interfaces on spin-orbit torques Article 10.1103/PhysRevB.103.134405 1 Physical Review B, v.103, no.13 Physical Review B 103 13 N scie scopus 000646193600002 2-s2.0-85104459892 Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Materials Science Physics Article PERPENDICULAR MAGNETIZATION MAGNITUDE ELECTRONS SYMMETRY CURRENT-DRIVEN DYNAMICS spin-orbit torque