Yu-Hsuan (Eugene) is a Physics Ph.D. student in Professor Joel Moore’s group. Prior to his PhD journey in UC Berkeley, Yu-Hsuan received his B.S. degree in physics from National Tsing Hua University at Taiwan.
Yu-Hsuan’s work focused on theoretical transport properties of topological materials with magnetic textures. Manipulation and probing of magnetic textures in noncollinear topological antiferromagnets such as Mn3X (X=Sn, Ge,...) are vital for the progress of antiferromagnetic spintronics. He aimed to investigate the theory of the chiral Hall effect and spin-orbit torque in Mn3X and develop new experimental techniques to manipulate magnetic textures in such materials. The noncollinearity of magnetic textures in Mn3X adds a high level of complexity to the investigation.
Furthermore, Yu-Hsuan also focused on developing a general theory of conductivity tensor of an N-spin system. The central issue is to identify a series of order parameters for an N-spin system. It has important application in next - generation memory device since a hierarchy of order parameters provides us a variety of knobs to write-in and read-out an AFM memory device.