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Self-Integrated Quantum Imaging of an All-van der Waals Spin-Orbit Torque System

June 2026 Xi Zhang; Jingcheng Zhou; Chaowei Hu; PeiYu Cai; Kuangyin Deng; Chuangtang Wang; Nishkarsh Agarwal; Hanshang Jin; Faris A. Al-Matouq; Stelo Xu; Roshan S. Trivedi; Senlei Li; Sumedh Rathi; Hanyi Lu; Zhigang Jiang; Valentin Taufour; Robert Hovden; Liuyan Zhao; Ran Cheng; Xiaodong Xu; Elton J. G. Santos; Jiun-Haw Chu; Chunhui Rita Du; Hailong Wang Nature Communications (2026)
#Spin-Orbit Torque #vdW Heterostructures #Quantum Imaging #Fe3GaTe2

My Contribution

I analyzed the spin-orbit torque (SOT) driven magnetization switching mechanism in the Fe₃GaTe₂/hBN heterostructure using micromagnetic simulations. My work focused on disentangling the individual contributions of field-like and damping-like torques in the deterministic switching process.

I systematically investigated the critical current densities required for reliable switching, clarifying the complex interplay between spin-transfer torque (STT) and spin-orbit torque (SOT) mechanisms. These simulations provided critical theoretical insight for interpreting the nitrogen-vacancy (NV) center quantum imaging data and understanding the microscopic origins of the observed switching behavior.