Large Unidirectional Magnetoresistance in Metallic Heterostructures in the Spin Transfer Torque Regime

Ting-Yu Chang, Chih-Lin Cheng, Chao-Chung Huang +5

A large unidirectional magnetoresistance (UMR) ratio of UMR/$R_{xx}\sim$ $0.36\%$ is found in W/CoFeB metallic bilayer heterostructures at room temperature. Three different regimes…