Effect of heating on spin-motive force induced by magnetic resonance

Applied Physics Letters, Volume 117, Issue 24, December 2020. The spin-motive force (SMF), which is induced by the dynamics of non-uniform magnetic states having spin chirality, corresponds to the spin version of the electromotive force in Faraday's law of induction. Because magnetic dynamics produce heat through the damping effect, the detected SMF may include the thermoelectromotive force (TEMF) induced by heat, which is disadvantageous. In this study, we investigate the electrode-material dependence of the SMF induced by magnetic resonance and reveal that the heating is lower than 1 K at the most and that the SMF barely includes the TEMF. Moreover, we extract the SMF to remove the slight contribution of the TEMF.