【摘 要】
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The discovery of new topological states has become an important goal in the multidisciplinary fields of physics and material science [1,2].In addition to topolo
【机 构】
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School of Physics and Technology, Wuhan University, Wuhan 430072, China
【出 处】
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中国科学：物理学 力学 天文学（英文版）
论文部分内容阅读
The discovery of new topological states has become an important goal in the multidisciplinary fields of physics and material science [1,2].In addition to topological insulators,topological semimetals without band gaps have been the focus of research efforts.Typical examples include Weyl and Dirac semimetals, which feature isolated 2-band and 4-band linear crossing points in their band structures.Intriguingly,such linearly dispersive quasiparticles in solids can mimic the behavior of high-energy particles (e.g., Dirac and Weyl fermions in the relativistic region);therefore, these materials provide easily accessible, low-energy platforms to investigate the properties of their high-energy counterparts.
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