Metamagnetic multiband Hall effect in Ising antiferromagnet ErGa₂.

ABSTRACT: Frustrated rare-earth-based intermetallics provide a promising platform for emergent magnetotransport properties through exchange coupling between conduction electrons and localized rare-earth magnetic moments. Metamagnetism, the abrupt change of magnetization under an external magnetic field, is a signature of first-order magnetic phase transitions; recently, metamagnetic transitions in frustrated rare earth intermetallics have attracted interest for their accompanying nontrivial spin structures (e.g., skyrmions) and associated nonlinear and topological Hall effects (THE). Here, we present metamagnetism-induced Hall anomalies in single-crystalline ErGa₂, which recalls features arising from the THE but wherein the strong Ising-type anisotropy of Er moments prohibits noncoplanar

SUBMITTER: Kurumaji T 

PROVIDER: S-EPMC11161778 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature