Modeling and analysis of second-harmonic magnetoresistance with arbitrary spin polarization and unconventional spin-orbit torquesRemoveFangye Lin, Tianyi Zhang, Xinjian Zhou, Guoyi Shi, Zhifeng Zhu, Zichen Zhang, Yue Zhang, Caihua Wan, Hyunsoo Yang, Weisheng Zhao, and Shuyuan ShiPhys. Rev. Applied 25, 024066 (2026)