Observation of spin-motive force in ferrimagnetic GdFeCo alloy films

@article{Fukuda2020ObservationOS,
  title={Observation of spin-motive force in ferrimagnetic GdFeCo alloy films},
  author={Shunsuke Fukuda and Hiroyuki Awano and Kenji Tanabe},
  journal={arXiv: Materials Science},
  year={2020}
}
We investigated the spin-motive force (SMF) in ferrimagnetic GdFeCo alloy films using the spin-torque-induced ferromagnetic resonance method. The amplitude of the SMF is enhanced by the Gd doping near a Gd composition of the boundary between in-plane and perpendicularly magnetized films, which is roughly consistent with the analysis based on the SMF theory. Moreover, we find that the sign of the SMF is independent of the spin polarization and that the s-f coupling at Gd atoms does not play as a… 
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