Unconventional magnetism and electronic transport in magnetic Weyl semimetals RAlX

ORAL

Abstract

We study the electronic and magnetic properties in magnetic Weyl semimetals RGeX, where R denotes rare-earth elements and X=Si/Ge. First, we find that by virtue of the strong spin-orbit coupling the magnetic moments of the rare earth ions are ordered in an unconventional manner, which can be further controlled by external magnetic fields. On the other hand, the conduction electrons near the Fermi surface host both type-\I\ and type-\II\ Weyl nodes. Such topological conduction electrons are coupled to the local magnetic moments through Kondo couplings, which allow for the control of the Weyl nodes by manipulating the magnetic moments, leading to anomalous electronic transport behavior.

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Presenters

  • Jianpeng Liu

    Kavli Institute for Theoretical Physics, UC Santa Barbara, KITP, Univ of California - Santa Barbara, University of California, Santa Barbara, Kavli Institute of Theoretical Physics, UCSB

Authors

  • Jianpeng Liu

    Kavli Institute for Theoretical Physics, UC Santa Barbara, KITP, Univ of California - Santa Barbara, University of California, Santa Barbara, Kavli Institute of Theoretical Physics, UCSB

  • Lucile Savary

    Laboratoire de physique, École Normale Supérieure de Lyon, Physics, Massachusetts Institute of Technology, Laboratoire de physique， CNRS, Ecole Normale Superieure de Lyon, Ecole Normale Superieure de Lyon

  • Takehito Suzuki

    Department of Physics, Massachusetts Institute of Technology, Massachusetts Inst of Tech-MIT, Massachusetts Institute of Technology

  • Joseph Checkelsky

    Department of Physics, Massachusetts Institute of Technology, Massachusetts Inst of Tech-MIT, Physics, Massachusetts Institute of Technology, Massachusetts Institute of Technology, Physics, Massachusetts Inst of Tech-MIT

  • Leon Balents

    Kavli Institute for Theoretical Physics, UC Santa Barbara, Physics, Univ of California - Santa Barbara, Kavli Institute for Theoretical Physics, University of California, Santa Barbara, KITP, Univ of California - Santa Barbara, Kavli Institute of Theoretical Physics, UCSB, Kavli Institute for Theoretical Physics, Univ of California - Santa Barbara, Physics, Kavli Institute for Theoretical Physics