Anomalous spin current anisotropy in a noncollinear antiferromagnet.

ABSTRACT: Cubic materials host high crystal symmetry and hence are not expected to support anisotropy in transport phenomena. In contrast to this common expectation, here we report an anomalous anisotropy of spin current can emerge in the (001) film of Mn₃Pt, a noncollinear antiferromagnetic spin source with face-centered cubic structure. Such spin current anisotropy originates from the intertwined time reversal-odd ([Formula: see text]-odd) and time reversal-even ([Formula: see text]-even) spin Hall effects. Based on symmetry analyses and experimental characterizations of the current-induced spin torques in Mn₃Pt-based heterostructures, we find that the spin current generated by Mn₃Pt (001) exhibits exotic dependences on the current direction for all the spin compon

SUBMITTER: Cao C 

PROVIDER: S-EPMC10514083 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature