Symmetry in chiral phonon and magnon.

ORAL

Abstract

Symmetry plays a critical role in determining physical properties. Recently, phonon chirality has become an important topic. The interest is driven partly by its relevance to giant phonon thermal hall conductivity in Cuprate high-Tc superconductors and partly by its promise for applications in producing a giant effective magnetic field in materials. On the other hand, the recent rapid development of spin and magnetic space groups makes it possible to classify chiral phonons in magnetic materials as well as understand magnon topology. Here, we present a study of chiral phonon and magnon topology, and relate them to crystal symmetries.

* This work is supported by the Department of Energy BES under award number DE-SC0022277 as well as by the Quantum Science Center (QSC), a National Quantum Information Science Center of the U.S.Department of Energy(DOE) on probing quantum matter. We also acknowledge Grant No. GBMF8048 from the Gordon and Betty Moore Foundation.

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Presenters

  • Ze-Xun Lin

    College of Letters and Science, University of California, Los Angeles, University of California, Los Angeles, College of Letters and Science, University of California, Los Angeles (UCLA), CA, USA.

Authors

  • Ze-Xun Lin

    College of Letters and Science, University of California, Los Angeles, University of California, Los Angeles, College of Letters and Science, University of California, Los Angeles (UCLA), CA, USA.

  • Prineha Narang

    College of Letters and Science, University of California, Los Angeles (UCLA), CA, USA., University of California Los Angeles, College of Letters and Science, University of California, Los Angeles (UCLA), UCLA, University of California, Los Angeles, College of Letters and Science, University of California, Los Angeles, Harvard University