Speaker: Ming Li

Abstract: Due to their insensitivity in external magnetic field, zero stray field, and THz dynamics, antiferromagnetic materials are believed to be promising for future spintronics. However, writing information in and reading the signal from antiferromagnets have been challenging researchers for a long time. Endeavors have been made in recent years, revealing the feasibility of manipulating and measuring the antiferromagnetic ordering. This report reviews the mechanisms of spin-transfer torque and spin-orbit torque, most investigated and developed methods, as well as other efforts in the manipulation of the Néel order parameter. Anisotropic magnetoresistance and spin Hall magnetoresistance are also explained. Experimental demonstrations of controlling and detecting the ordering in antiferromagnetic materials are summarized. At the end, proposals of enhancing the anisotropic magnetoresistance and manipulating noncolinear antiferromagnetic configurations are given.