TY - JOUR
T1 - Intrinsic and extrinsic tunability of Rashba spin-orbit coupled emergent inductors
AU - Ieda, Jun'Ichi
AU - Yamane, Yuta
N1 - Funding Information:
Acknowledgments. The authors thank D. Kurebayashi, K. Yamamoto, S. Maekawa, E. Saitoh, S. Fukami, and H. Ohno for fruitful discussions and valuable comments. This work was supported by JSPS KAKENHI (Grant No. JP16K05424, JP19H05622).
Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/3/4
Y1 - 2021/3/4
N2 - The emergent induction of spiral magnets that was proposed [N. Nagaosa, Jpn. J. Appl. Phys. 58, 120909 (2019)JAPLD80021-492210.7567/1347-4065/ab5294] and recently demonstrated [T. Yokouchi et al., Nature (London) 586, 232 (2020)NATUAS0028-083610.1038/s41586-020-2775-x] is shown to be further extended by a comprehensive treatment of the Rashba spin-orbit coupling and the electron spin relaxation that affect the underlying processes of spin-transfer torque and spinmotive force. Within adiabatic approximation, we show that the output voltages are widely altered intrinsically via the Rashba effect whereas extrinsically via the nonadiabatic correction due to the spin relaxation and sample disorder. The findings respectively clarify the origins for the amplitude modulation and sign change of the emergent inductance with tunability by electrical gating and careful sample preparation.
AB - The emergent induction of spiral magnets that was proposed [N. Nagaosa, Jpn. J. Appl. Phys. 58, 120909 (2019)JAPLD80021-492210.7567/1347-4065/ab5294] and recently demonstrated [T. Yokouchi et al., Nature (London) 586, 232 (2020)NATUAS0028-083610.1038/s41586-020-2775-x] is shown to be further extended by a comprehensive treatment of the Rashba spin-orbit coupling and the electron spin relaxation that affect the underlying processes of spin-transfer torque and spinmotive force. Within adiabatic approximation, we show that the output voltages are widely altered intrinsically via the Rashba effect whereas extrinsically via the nonadiabatic correction due to the spin relaxation and sample disorder. The findings respectively clarify the origins for the amplitude modulation and sign change of the emergent inductance with tunability by electrical gating and careful sample preparation.
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U2 - 10.1103/PhysRevB.103.L100402
DO - 10.1103/PhysRevB.103.L100402
M3 - Article
AN - SCOPUS:85102919048
SN - 2469-9950
VL - 103
JO - Physical Review B
JF - Physical Review B
IS - 10
M1 - L100402
ER -