TY - GEN
T1 - Spin-Orbit Torque Switching of Mn3Sn in Configuration II
AU - Xu, Zhengde
AU - Zhang, Xue
AU - Qiao, Yixiao
AU - Liang, Gengchiau
AU - Shi, Shuyuan
AU - Zhu, Zhifeng
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - Previous research has demonstrated the spin-orbit torque (SOT) switching of Mn3Sn in configuration I. However, this configuration has yielded several unexpected outcomes, giving rise to debates concerning the fundamental physics governing the switching process. Alternatively, in configuration II, σ is perpendicular to the kagome plane, which bears greater resemblance to the ferromagnetic (FM) system. In this study, we show successful SOT switching of Mn3Sn in configuration II, demonstrating behaviors more akin to FM, e.g., the critical switching current density (Jcrit) and external field (Hext) are in the order of 1010A/m2 and tens of Oersted, respectively. The switching result is also independent of the initial state. We further show that the distinctive spin structure of Mn3Sn leads to unique switching characteristics, including Jcrit increasing linearly with Hext and the opposite switching polarity to FM. A switching phase diagram is further provided as a guideline for experimental demonstrations, offering a clear physical picture for the observed phenomena.
AB - Previous research has demonstrated the spin-orbit torque (SOT) switching of Mn3Sn in configuration I. However, this configuration has yielded several unexpected outcomes, giving rise to debates concerning the fundamental physics governing the switching process. Alternatively, in configuration II, σ is perpendicular to the kagome plane, which bears greater resemblance to the ferromagnetic (FM) system. In this study, we show successful SOT switching of Mn3Sn in configuration II, demonstrating behaviors more akin to FM, e.g., the critical switching current density (Jcrit) and external field (Hext) are in the order of 1010A/m2 and tens of Oersted, respectively. The switching result is also independent of the initial state. We further show that the distinctive spin structure of Mn3Sn leads to unique switching characteristics, including Jcrit increasing linearly with Hext and the opposite switching polarity to FM. A switching phase diagram is further provided as a guideline for experimental demonstrations, offering a clear physical picture for the observed phenomena.
KW - magnetization switching
KW - Noncollinear antiferromagnet
KW - spin-orbit torque
UR - http://www.scopus.com/inward/record.url?scp=85199008934&partnerID=8YFLogxK
U2 - 10.1109/INTERMAGShortPapers61879.2024.10576977
DO - 10.1109/INTERMAGShortPapers61879.2024.10576977
M3 - Conference contribution
AN - SCOPUS:85199008934
T3 - 2024 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2024 - Proceedings
BT - 2024 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2024
Y2 - 5 May 2024 through 10 May 2024
ER -