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Two-dimensional Dirac phonons without/with inversion symmetry.

Chenyang Wang1,2, Wei-Wang Yu1,2, Ying Liu1,2

  • 1State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|July 7, 2023
PubMed
Summary

This study classifies two-dimensional Dirac phonons, revealing screw and time-reversal symmetries are key for their existence. These Dirac phonons can be viewed as two opposite-chirality Weyl points.

Keywords:
2D Dirac phononsinversion symmetryk·p model

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