Nonsymmorphic topological crystalline insulators and superconductors
Recent progresses on topological phases have revealed that symmetries specific to crystals play important roles in the topological structures. In this talk, we present a topological classification of insulators and superconductors in the presence of nonsymmorphic space groups such as glide reflection and screw rotation. It is pointed out that the nonsymmorphic space groups allow novel topological phases, which support interesting Mobius twisted surface states.
