Inverse Edelstein effect induced by magnon - phonon coupling

2018/05/21 by Mingran Xu, Jorge Puebla, Florent Auvray +3 · 1 citation
Physics and Astronomy · #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.97.180301

published as Phys. Rev. B 97, 180301(R) Published 10 May 2018 · 4 figures. 5 pages

arxiv created 2018/05/21 · arxiv updated 2018/05/22

Abstract

We demonstrate a spin to charge current conversion via magnon-phonon coupling and inverse Edelstein effect on the hybrid device Ni/Cu(Ag)/Bi₂O₃. The generation of spin current (J_s≈ 10⁸A/m²) due to magnon - phonon coupling reveals the viability of acoustic spin pumping as mechanism for the development of spintronic devices. A full in-plane magnetic field angle dependence of the power absorption and a combination of longitudinal and transverse voltage detection reveals the symmetric and asymmetric components of the inverse Edelstein effect voltage induced by Rayleigh type surface acoustic waves. While the symmetric components are well studied, asymmetric components are widely unexplored. We assign the asymmetric contributions to the interference between longitudinal and shear waves and an anisotropic charge distribution in our hybrid device.

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