Magneto-thermal transport phenomena in materials with complex spin and crystal symmetry

Abstrakt

Novel spintronic phenomena arising from materials with complex spin and crystal symmetry have attracted significant attention from the scientific community. Following the recent theory development [1], we experimentally show odd effects in magnetic fields such as spontaneous anomalous Hall effect arising from collinear antiferromagnet semiconductor MnTe.

This effect can be rationalized considering nonmagnetic atoms at noncentrosymmetric lattice sites which break additional symmetries and cause a spin splitting in certain parts of the Brillouin zone. Additional out of plane field dependent measurements will help us to demonstrate the nature of the spontaneous AHE.