Higher-Order Dirac Sonic Crystals.

  title={Higher-Order Dirac Sonic Crystals.},
  author={Huahui Qiu and Meng Xiao and Fan Zhang and Chunyin Qiu},
  journal={Physical review letters},
  volume={127 14},
  • Huahui Qiu, Meng Xiao, +1 author Chunyin Qiu
  • Published 1 December 2020
  • Medicine, Physics
  • Physical review letters
Discovering new topological phases of matter is a major theme in fundamental physics and materials science. Dirac semimetal provides an exceptional platform for exploring topological phase transitions under symmetry breaking. Recent theoretical studies have revealed that a three-dimensional Dirac semimetal can harbor fascinating hinge states, a higher-order topological manifestation not known before. However, its realization in experiment is yet to be achieved. In this Letter, we propose a… 

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