Tunable Giant Anomalous Hall in a Kondo Lattice Ferromagnet UBiTe

Abstract

Kondo lattice systems are recognized for potentially hosting a variety of rich topological phases. Several pioneering studies have demonstrated significant anomalous Hall and anomalous Nernst effects in these systems, attributed to the Berry curvature of the hybridization bands. In this study, we investigate UBiTe, a ferromagnetic Kondo lattice system. Our findings reveal that the intrinsic contribution to the anomalous Hall conductivity is closely tied to the Kondo coherence temperature. Moreover, we demonstrate that slight shifts in the Fermi level across three different samples significantly influence this intrinsic contribution, in alignment with the Berry curvature localized within the narrow hybridization bands. This provides a stark contrast to the less pronounced sensitivity observed in weakly correlated Weyl semimetals, underscoring the distinctive electronic properties of Kondo lattice systems. The anomalous Hall conductivity of one samples ranks among the highest reported for topological magnetic materials.

References in corpus (5)

• Observation of Fractionally Quantized Anomalous Hall Effect
• Topological Semimetal driven by Strong Correlations and Crystalline Symmetry
• Breakdown of the scaling relation of anomalous Hall effect in Kondo lattice ferromagnet USbTe
• Origin of spin reorientation and intrinsic anomalous Hall effect in the kagome ferrimagnet TbMn6Sn6
• Giant anomalous Hall conductivity in the itinerant ferromagnet LaCrSb3 and the effect of f-electrons

Cited by in corpus (1)

• UOTe: Kondo-interacting topological antiferromagnet in a van der Waals lattice