Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase
نویسنده
چکیده
Phase transitions between the quantum spin Hall and the insulator phases in three dimensions are studied. We find that in inversion-asymmetric systems there appears a gapless phase between the quantum spin Hall and insulator phases in three dimensions, which is in contrast with the two-dimensional case. Existence of this gapless phase stems from a topological nature of gapless points (diabolical points) in three dimensions, but not in two dimensions. PACS numbers: 73.43.-f, 72.25.Dc, 73.43.Nq 85.75.-d Submitted to: New J. Phys. Phase transition between the quantum spin Hall and insulator phases in 3D 2
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