Direction-Dependent Conduction Polarity in Altermagnetic CrSb.

ABSTRACT: CrSb has recently gained immense attention as an altermagnetic candidate. This work reports on the experimental observation of direction-dependent conduction polarity (DDCP) in altermagnetic CrSb through Hall and Seebeck thermopower measurements. Conduction is dominated by holes along the c$c$ -axis and by electrons in the ab$\textit{ab}$ -plane of the hexagonal crystal of CrSb. Density functional theory (DFT) calculations indicate that DDCP in CrSb arises from a multicarrier mechanism, where electrons and holes living in distinct bands dominate conduction along different crystallographic directions. Furthermore, DFT predicts that DDCP exists within a narrow energy window near the Fermi level and is sensitive to small doping levels. This prediction is experimentally validated by the loss o

SUBMITTER: Rai B 

PROVIDER: S-EPMC12279225 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature