Anomalous Hall effect and Lifshitz transition in ZrTe<sub>5</sub>

ORAL

Abstract

The proximity of the Fermi energy to its Dirac node make ZrTe5 a suitable platform in which to study the influence of topology in transport properties. In particular, it has been shown that the Berry curvature in ZrTe5 gives rise to an anomalous contribution to its Hall signal. We report measurements of the Anomalous Hall Effect in ZrTe5 at different stages of a temperature induced Lifshitz transition, in which the Fermi level decreases with increasing temperature. An enhancement of the anomalous Hall signal is observed for temperatures at which the Fermi level approaches the vicinity of the Dirac node, providing an insight of the interplay between topology and electronic states in the system. Our results show that ZrTe5 is a highly tunable platform at which to study the influence of topology in electronic transport.

–

Presenters

  • Pedro Mercado

    • Brookhaven National Laboratory

Authors

  • Pedro Mercado

    • Brookhaven National Laboratory

  • Niraj Aryal

    • Brookhaven National Laboratory
    • National High Magnetic Field Laboratory

  • Weiguo Yin

    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Division, Brookhaven National Laboratory

  • Tonica Valla

    • Brookhaven National Laboratory

  • Genda Gu

    • Brookhaven National Laboratory
    • Brookhaven National Laboratories
    • Brookhaven national lab
    • Brookhaven National Labs
    • Condensed Matter Physics and Materials Science Department
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory
    • CMPMS, Brookhaven National Laboratory
    • Brookhaven National Lab
    • COndensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • Qiang Li

    • Department of Physics and Astronomy, and Condensed Matter Physics and Materials Science Division, Stony Brook University, and Brookhaven National Laboratory
    • Stony Brook University
    • Brookhaven National Laboratory