Zero-field switching along current
Through ferroelectric domain engineering in multiferroic BiFeO₃, this heterostructure generates an unconventional magnon torque enabling deterministic, field-free switching of magnetization collinear with current, unattainable with conventional spin sources.
Xingyu, Yan · Jiang, Xiaoyu · Bai, Hao · Zi-An, Wang · Chen, Hetian · Qiu, Xiaofu · Jain, Rakshit · Shao, Dingfu · Jiang, Wanjun · Yi, Di · Ralph, Daniel C. · Nan, Tianxiang
Nature Communications 2026
Deterministic field-free switching of in-plane magnetization collinear with the current direction
Unconventional magnon polarization
Paves the way for low-power spintronic devices