Anomalous Hall effect in weak-itinerant ferrimagnet FeCr${}_2$Te${}_4$

Abstract

We carried out a comprehensive study of electronic transport, thermal and thermodynamic properties in FeCr${}_2$Te${}_4$ single crystals. It exhibits bad-metallic behavior and anomalous Hall effect (AHE) below a weak-itinerant paramagentic-to-ferrimagnetic transition $T_c$ $\sim$ 123 K. The linear scaling between the anomalous Hall resistivity ${\rho }_{xy}$ and the longitudinal resistivity ${\rho }_{xx}$ implies that the AHE in FeCr${}_2$Te${}_4$ is most likely dominated by extrinsic skew-scattering mechanism rather than intrinsic KL or extrinsic side-jump mechanism, which is supported by our Berry phase calculations.

arXiv commentarXiv admin note: text overlap with arXiv:1811.07015

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