Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session T00: Poster Session III (1pm-4pm PST)
1:00 PM,
Thursday, March 9, 2023
Room: Exhibit Hall (Forum Ballroom)
Sponsoring
Unit:
APS
Abstract: T00.00208 : Direct relationship of chiral spin texture induced variations of system energy and magnetization switching*
Presenter:
suhyeok an
(DGIST)
Authors:
suhyeok an
(DGIST)
Hyeong-Joo Seo
(DGIST)
Eunchong Baek
(DGIST)
Ki-Seung Lee
(DGIST)
Soobeom Lee
(DGIST)
Chun-Yeol You
(Daegu Gyeongbuk Institute of Science and Technology)
In this report, we show that the chirality-dependent magnetization switching, in field- and spin-orbit torque (SOT)-induced both, is originated by the system energy variation, which is proved in theoretically and experimentally. A theoretical model is derived from the Hamiltonian including DMI and our experimental results of field-induced switching are well explained by the theoretical model, implying direct relationship between chirality and field-induced magnetization switching. As a next step, we directly compared chirality-dependent field-switching and SOT-switching, the results show clear correlation. Therefore, we can propose the chiral-dependent energy variation as the common origin in both of chirality-dependent field- and SOT-induced switching.
*This work is supported by the National Research Foundation of Korea (NRF-2021M3F3A2A01037522, NRF-2021R1A2C2007672, NRF-2018R1A6A3A11041061).
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