Magnetotransport properties of thin pentatellurides

ORAL

Abstract

Here we report the magnetotransport properties of thin flakes of HfTe5 and ZrTe5, which have been reported to be in multiple possible phases (Dirac semimetal, weak TI, and strong TI). We observed a nonlinear Hall effect across thin flakes (<200 nm) at temperatures down to 1.6K, and we see a sign-change as the majority charge carrier changes in temperature. We then tuned the magnetotransport through an ionic liquid gate placed directly onto the flakes.

*This work is supported by the NSF funded Materials Research Science and Engineering Center (MRSEC) at UCI.

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Presenters

  • Robert A Welser

    • University of California, Irvine

Authors

  • Robert A Welser

    • University of California, Irvine

  • Jinyu Liu

    • University of California, Irvine

  • Luis A Jauregui

    • University of California, Irvine

  • Javier D Sanchez-Yamagishi

    • University of California, Irvine

  • Michael T Pettes

    • Los Alamos National Laboratory