Band asymmetry-driven nonreciprocal electronic transport in a helimagnetic semimetal α-EuP₃.

ABSTRACT: Chiral magnetic textures give rise to unconventional magnetotransport phenomena such as the topological Hall effect and nonreciprocal electronic transport. While the correspondence between topology or symmetry of chiral magnetic structures and such transport phenomena has been well established, a microscopic understanding based on the spin-dependent band structure in momentum space remains elusive. Here, we demonstrate how a chiral magnetic superstructure introduces an asymmetry in the electronic band structure and triggers a nonreciprocal electronic transport in a centrosymmetric helimagnet α-EuP₃. The magnetic structure of α-EuP₃ is highly tunable by a magnetic field and closely coupled to its semimetallic electronic band structure, enabling a systematic study acros

SUBMITTER: Mayo AH 

PROVIDER: S-EPMC11789083 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature