A comparative study of the domain wall motion in ferrimagnets (Fe,Co) 1− x (Gd,Tb) x
Source abstract
Abstract
(∼8 nm)/Ta(3 nm), we show that the partially compensated ferrimagnets CoGd and FeGd can exhibit a faster DW motion under various (in-plane and out-of-plane) magnetic fields driven by current-induced spin-orbit torques. In stark contrast with the fast motion of domain walls in Gd-based ferrimagnets, we find that the CoTb system exhibits much slower DW dynamics, and the FeTb system shows no motion, but evolved into a multi-domain state upon applying current pulses. Our results demonstrate that ferrimagnets CoGd and FeGd are more suitable candidates for achieving ultrafast DW motion, which could be useful for developing spintronic memory and logic devices.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic properties of thin films · Magnetic Properties and Applications · Magneto-Optical Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Guangdong, 518172, China
State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics, Beijing 100084, China
Frontier Science Center for Quantum Information Tsinghua University, Beijing 100084, China
Funding
National Natural Science Foundation of China · Beijing Innovation Center for Future Chip
References (55)
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