Absence of Orbital Hall Magnetoresistance in Nonmagnet/Ferromagnet Bilayers with Large Orbital Torque
This study reports the absence of orbital Hall magnetoresistance in nonmagnet/ferromagnet bilayers despite the presence of giant orbital torques, revealing that orbital currents undergo isotropic bulk absorption rather than the anisotropic interfacial reflection required for magnetoresistance, while also cautioning against misleading signals from Ni-based systems.