Strain effect on the perpendicular magnetization switching driven by spin–orbit torque
Abstract
In this study, we investigate the influence of strain on spin–orbit torque and current-induced magnetization switching in Ta/Pt/Co/Ta heterostructures deposited on flexible polyimide substrates. By applying strain ranging from −12.5‰ (compressive) to 12.5‰ (tensile), we observe that increasing the strain amplitude reduces coercivity and enhances spin–orbit torque efficiency, collectively leading to a 28.6% reduction in switching current density. The lowest achieved switching current density is 3.07 MA/cm2. Our findings demonstrate strain-mediated tuning of spin–orbit torque and underscore the potential of such heterostructures for flexible spintronic applications.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (16)
Yuzhe Chen
Zhuoyi Li
Zhe Zhang
Sicong Hu
National Key Laboratory of Spintronics, Nanjing University 1 , Suzhou 215163,
Zhihao Li
Junwei Hou
Lei Wang
Yu Yan
Yao Li
Liang He
School of Mechanical Engineering, State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering
Jun Du
State Key Laboratory of Chemical Reaction Dynamics, Dalian Institute of Chemical Physics
Rong Zhang
Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, China
Jing Wu
Xianyang Lu
Hang Xie
Yongbing Xu
National Key Laboratory of Spintronics, Nanjing University