Mechanical generation of spin current by spin-rotation coupling

Abstract

Spin-rotation coupling, which is responsible for angular momentum conversion between the electron spin and rotational deformations of elastic media, is exploited for generating spin current. This method requires neither magnetic moments nor spin-orbit interaction. The spin current generated in nonmagnets is calculated in presence of surface acoustic waves. We solve the spin diffusion equation, extended to include spin-rotation coupling, and find that larger spin currents can be obtained in materials with longer spin lifetimes. Spin accumulation induced on the surface is predicted to be detectable by time-resolved Kerr spectroscopy.

arXiv comment5 pages, 2 figures

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Cited by in corpus (67)

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• Fate of spin polarization in a relativistic fluid: An entropy-current analysis
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• Chirality as Generalized Spin-Orbit Interaction in Spintronics
• Advances in coherent coupling between magnons and acoustic phonons
• Inverse Edelstein effect induced by magnon - phonon coupling
• Phonon angular momentum Hall effect
• Theory of spin hydrodynamic generation
• Nonlinear spin Hall effect in $\mathcal{P}\mathcal{T}$-symmetric collinear magnets
• Acoustic spin Hall effect in strong spin-orbit metals
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• Acoustic ferromagnetic resonance and spin pumping induced by surface acoustic waves
• Topological acoustic triple point
• Unidirectional Pumping of Phonons by Magnetization Dynamics
• Symmetry of the Magnetoelastic Interaction of Rayleigh and Shear Horizontal Magnetoacoustic Waves in Nickel Thin Films on LiTaO${}_3$
• Electron magnetic moment of transient chiral phonons in KTaO${}_3$
• Quantum Kinetic Theory for Quantum Electrodynamics
• Microscopic Theory for Coupled Atomistic Magnetization and Lattice Dynamics
• Phonon Transport Controlled by Ferromagnetic Resonance
• Conversion between electron spin and microscopic atomic rotation
• Nonreciprocal magnetoacoustic waves in synthetic antiferromagnets with Dzyaloshinskii-Moriya interaction
• Second order chiral kinetic theory under gravity and antiparallel charge-energy flow
• Applications of Nanomagnets as Dynamical Systems
• Temporal-offset dual-comb vibrometer with picometer axial precision
• Electron spin-vorticity coupling in low and high Reynolds number pipe flows
• Eddy magnetization from the chiral Barnett effect
• Unidirectional planar Hall voltages induced by surface acoustic waves in ferromagnetic thin films
• Electrical voltage by electron spin-vorticity coupling in laminar ducts
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• Gravitomagnetic Stern--Gerlach Force
• Conversion of chiral phonons into magnons in ferromagnets and antiferromagnets
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• Chiral vortical effect in relativistic and nonrelativistic systems
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• Spin current generation due to differential rotation
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• Curvature-induced valley-dependent spin-orbit interaction
• The Barnett vs. Landau levels in the rotating two-dimensional electron gas
• Nuclear Surface Acoustic Resonance with Spin-Rotation Coupling
• Spin hydrodynamic generation in unsteady flows
• Hybrid quantum surface acoustic wave with skyrmion qubit for quantum information processing
• Acoustic Rashba-Edelstein effect
• Quantum fluctuation in rotation velocity of a levitated magnetic particle
• Mach's Principle and the Origin of Inertia