Spin elastodynamic motive force
arXiv:2110.06552 · doi:10.1103/PhysRevLett.128.077201
Abstract
The spin-motive force (SMF) in a simple ferromagnetic monolayer caused by a surface acoustic wave is studied theoretically via spin-vorticity coupling (SVC). The SMF has two mechanisms. The first is the SVC-driven SMF, which produces the first harmonic electromotive force, and the second is the interplay between the SVC and the magentoelastic coupling, which produces the d.c. and second harmonic electromotive forces. We show that these electric voltages induced by a Rayleigh-type surface acoustic wave can be detected in polycrystalline nickel. No sophisticated device structures, non-collinear magnetic structures, or strong spin-orbit materials are used in our approach. Consequently, it is intended to broaden the spectrum of SMF applications considerably.
5 pages, 2 figures
References in corpus (9)
- Intrinsic and non-local Gilbert damping in polycrystalline nickel studied by Ti:Sapphire laser fs spectroscopy
- Effects of mechanical rotation on spin currents
- Antiferromagnetic Piezospintronics
- Theory of spin hydrodynamic generation
- Piezospintronic effect in honeycomb antiferromagnets
- Mechanical control of spin-orbit splitting in GaAs and InGaAs epilayers
- Electron spin-vorticity coupling in low and high Reynolds number pipe flows
- Electrical voltage by electron spin-vorticity coupling in laminar ducts
- Sustainable spin current in the time-dependent Rashba system