Generalized spin-orbit torques in two-dimensional ferromagnets with spin-orbit coupling

doi:10.1140/epjb/e2019-100147-y

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	Generalized spin-orbit torques in two-dimensional ferromagnets with spin-orbit coupling
	Yang, C ; Wang, ZC ; Zheng, QR ; Su, G 1
刊名	EUROPEAN PHYSICAL JOURNAL B
	2019
卷号	92 期号:6 页码:136
关键词	BOLTZMANN-EQUATION RESONANCE
ISSN号	1434-6028
DOI	10.1140/epjb/e2019-100147-y
英文摘要	Based on the spinor Boltzmann equation, we obtain the continuity equations of charge and spin accumulation in two-dimensional ferromagnets with Rashba or Dresselhaus spin-orbit coupling, in which the spin diffusion equation (the continuity equation of spin accumulation) gives the spin-orbit torques that have an extra term of charge density gradient that is paid little attention in previous studies. Numerical results indicate this term plays an important role in inhomogeneous systems. In order to study the magnetization dynamics of ferromagnets, we solve the Landau-Lifshitz-Gilbert equation together with the spin diffusion equation. Our results indicate that the magnetization in systems with Rashba SOI is easier to be switched by an external electric field than the system with Dresselhaus SOI, and for anisotropic ferromagnets, we study the critical external electric field that manipulate the reversal of magnetization.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23412]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Kavli Inst Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yang, C,Wang, ZC,Zheng, QR,et al. Generalized spin-orbit torques in two-dimensional ferromagnets with spin-orbit coupling[J]. EUROPEAN PHYSICAL JOURNAL B,2019,92(6):136.
APA	Yang, C,Wang, ZC,Zheng, QR,&Su, G.(2019).Generalized spin-orbit torques in two-dimensional ferromagnets with spin-orbit coupling.EUROPEAN PHYSICAL JOURNAL B,92(6),136.
MLA	Yang, C,et al."Generalized spin-orbit torques in two-dimensional ferromagnets with spin-orbit coupling".EUROPEAN PHYSICAL JOURNAL B 92.6(2019):136.