Giant, unconventional anomalous Hall effect in the metallic frustrated magnet candidate, KV <sub>3</sub> Sb <sub>5</sub>
S. Y. Yang, Yaojia Wang, Brenden R. Ortiz, Defa Liu, Jacob Gayles, Elena Derunova, Rafael González‐Hernández, Libor Šmejkal, Yulin Chen, S. Parkin, Stephen D. Wilson, Eric S. Toberer, Tyrel M. McQueen, Mazhar N. Ali
Abstract
shows enhanced skew scattering that scales quadratically, not linearly, with the longitudinal conductivity, possibly arising from the combination of highly conductive Dirac quasiparticles with a frustrated magnetic sublattice. This allows the possibility of reaching an anomalous Hall angle of 90° in metals. This observation raises fundamental questions about AHEs and opens new frontiers for AHE and spin Hall effect exploration, particularly in metallic frustrated magnets.
Topics & Concepts
Condensed matter physicsQuasiparticleHall effectFerromagnetismSemimetalPhysicsSpin Hall effectDirac (video compression format)MagnetElectrical resistivity and conductivitySuperconductivityElectronSpin polarizationQuantum mechanicsBand gapNeutrinoTopological Materials and PhenomenaQuantum and electron transport phenomenaAdvanced Condensed Matter Physics