物理学报2024，Vol.73Issue(1)：314-321,8.DOI:10.7498/aps.73.20231836
基于外尔半金属WTe2的自旋-轨道矩驱动磁矩翻转
Magnetization switching driven by spin-orbit torque of Weyl semimetal WTe2
摘要
Abstract
The Wely semimetal WTe2 exhibits significant spin-orbit coupling characteristics and can generate unconventional spin current with out-of-plane polarization,which has become a hotspot in recent years.Meanwhile,WTe2 also has high charge-spin conversion efficiency,allowing perpendicular magnetization to be switched deterministically without the assistance of an external magnetic field,which is critical for the high-density integration of low-power magnetic random-access memories.The purpose of this paper is to review the recent advances in the research on spin orbit torque in heterostructures composed of WTe2 and ferromagnetic layers,focusing on progress of research on the detection and magnetization switching in the spin orbit torque of heterojunctions composed of WTe2 prepared by different methods(e.g.mechanical exfoliation and chemical vapor deposition)and ferromagnetic layers such as conventional magnets(e.g,FeNi and CoFeB,etc.)and two-dimensional magnets(e.g.Fe3GeTe2,etc.).Finally,the prospect of related research is discussed.关键词
WTe2/自旋轨道矩/磁矩翻转的电调控Key words
WTe2/spin-orbit torque/current-driven magnetization switching引用本文复制引用
魏陆军,李阳辉,普勇..基于外尔半金属WTe2的自旋-轨道矩驱动磁矩翻转[J].物理学报,2024,73(1):314-321,8.基金项目
国家自然科学基金(批准号:52001169,61874060,U1932159,61911530220)和南京邮电大学引进人才科研启动基金(批准号:NY219164,NY217118)资助的课题.Project supported by the National Natural Science Foundation of China(Grant Nos.52001169,61874060,U1932159,61911530220)and the Introduction Talent Research Launch Fund of Nanjing University of Posts and Telecommunications,China(Grant Nos.NY219164,NY217118). （批准号:52001169,61874060,U1932159,61911530220）
