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Higher-Order Dirac Sonic Crystals

  • 发布时间:2021-10-02
  • 点击次数:
  • 发表刊物:Physical Review Letters
  • 摘要: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 minimum model to construct a spinless higher-order Dirac semimetal protected by…
  • 论文类型:期刊论文
  • 卷号:127
  • 页面范围:14660
  • 是否译文:
  • 发表时间:2021

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