Spin-orbit coupled transport and spin torque in a ferromagnetic heterostructure

Abstract

Ferromagnetic heterostructures provide an ideal platform to explore the nature of spin-orbit torques arising from the interplay mediated by itinerant electrons between a Rashba-type spin-orbit coupling and a ferromagnetic exchange interaction. For such a prototypic system, we develop a set of coupled diffusion equations to describe the diffusive spin dynamics and spin-orbit torques. We characterize the spin torque and its two prominent--out-of-plane and in-plane--components for a wide range of relative strength between the Rashba coupling and ferromagnetic exchange. The symmetry and angular dependence of the spin torque emerging from our simple Rashba model is in an agreement with experiments. The spin diffusion equation can be generalized to incorporate dynamic effect such as spin pumping and magnetic damping.

Accepted for publication in Phys. Rev. B

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Cited by in corpus (15)

• Antiferromagnetic spintronics
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Phenomenology of chiral damping in noncentrosymmetric magnets
• Spin Hall magnetoresistance in antiferromagnet/normal metal bilayers
• Spin diffusion and torques in disordered antiferromagnets
• Microscopic Origin of Spin-Orbit Torque in Ferromagnetic Heterostructures: A First Principles Approach
• Asymmetric Pt/Co/Pt structure as a platform for extracting pure spin Hall torque
• Chiral-induced switching of antiferromagnet spins in a confined nanowire
• Spin and charge transport in topological nodal-line semimetals
• Universal spin wave damping in magnetic Weyl semimetals
• Impact of the crystal orientation on spin-orbit torques in Fe/Pd bilayers
• Topological damping Rashba spin orbit torque in ballistic magnetic domain walls
• Intrinsic Spin Decay Length in Antiferromagnetic Insulator
• Scaling of the Rashba spin-orbit torque in magnetic domain walls
• Magnetically Ordered Insulators for Advanced Spintronics