Anomalous Current-Induced Spin Torques in Ferrimagnets near Compensation.

@article{Mishra2017AnomalousCS,
  title={Anomalous Current-Induced Spin Torques in Ferrimagnets near Compensation.},
  author={Rahul Anup Mishra and Jiawei Yu and Xiaoqing Qiu and Mallikarjuna Rao Motapothula and Thirumalai Venkatesan and Hyunsoo Yang},
  journal={Physical review letters},
  year={2017},
  volume={118 16},
  pages={
          167201
        }
}
While current-induced spin-orbit torques have been extensively studied in ferromagnets and antiferromagnets, ferrimagnets have been less studied. Here we report the presence of enhanced spin-orbit torques resulting from negative exchange interaction in ferrimagnets. The effective field and switching efficiency increase substantially as CoGd approaches its compensation point, giving rise to 9 times larger spin-orbit torques compared to that of a noncompensated one. The macrospin modeling results… CONTINUE READING
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