Spin Hall phenomenology of magnetic dynamics

Abstract

We study the role of spin-orbit interactions in the coupled magnetoelectric dynamics of a ferromagnetic film coated with an electrical conductor. While the main thrust of this work is phenomenological, several popular simple models are considered microscopically in some detail, including Rashba and Dirac two-dimensional electron gases coupled to a magnetic insulator, as well as a diffusive spin Hall system. We focus on the long-wavelength magnetic dynamics that experiences current-induced torques and produces fictitious electromotive forces. Our phenomenology provides a suitable framework for analyzing experiments on current-induced magnetic dynamics and reciprocal charge pumping, including the effects of magnetoresistance and Gilbert-damping anisotropies, without a need to resort to any microscopic considerations or modeling. Finally, some remarks are made regarding the interplay of spin-orbit interactions and magnetic textures.

8 pages, 1 figure

References in corpus (3)

• Theory of spin Hall magnetoresistance
• Non-collinear Magnetoelectronics
• Theory of current-driven magnetization dynamics in inhomogeneous ferromagnets

Cited by in corpus (20)

• The dynamics of bimeron skyrmions in easy-plane magnets induced by a spin supercurrent
• Piezospintronic effect in honeycomb antiferromagnets
• Nonlinear analysis of magnetization dynamics excited by spin Hall effect
• Exploiting Coherence in Nonlinear Spin-Superfluid Transport
• Spin superfluidity in noncollinear antiferromagnets
• Magnetic dynamics with Weyl fermions
• Spintronics and Magnon Bose-Einstein Condensation
• Magnetic Domain Wall Floating on a Spin Superfluid
• Noise in tunneling spin current across coupled quantum spin chains
• Interaction Between a Domain Wall and Spin Supercurrent in Easy-cone Magnets
• Theory of Harmonic Hall Responses of Spin-Torque Driven Antiferromagnets
• Intertwining of lasing and superradiance under spintronic pumping
• Magnetization pumping and dynamics in a Dzyaloshinskii-Moriya magnet
• Proposal for spin superfluid quantum interference device
• Current-driven dynamics of antiferromagnetic domain-wall skyrmions
• Electronic Manipulation of Magnon Topology by Chirality Injection from Boundaries
• Collective spin dynamics under dissipative spin Hall torque
• Superfluid-like spin transport in the dynamic states of easy-axis magnets
• Superconducting magnetoelectric effects in mesoscopic hybrid structures
• Characterizing Spin-Orbit Torques by Tensorial Spin Hall Magnetoresistance