English

Spin elastodynamic motive force

Mesoscale and Nanoscale Physics 2022-02-22 v1

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.

Keywords

Cite

@article{arxiv.2110.06552,
  title  = {Spin elastodynamic motive force},
  author = {Takumi Funato and Mamoru Matsuo},
  journal= {arXiv preprint arXiv:2110.06552},
  year   = {2022}
}

Comments

5 pages, 2 figures

R2 v1 2026-06-24T06:51:07.681Z