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cond-mat.mtrl-sci2018
Plethora of Coexisting Topological Band Degeneracies in Nonsymmorphic Molecular Crystal OsOF
Hyungjun Lee, Oleg V. Yazyev
In band theory of solids, degeneracies manifest themselves as point, line, and surface objects. The topological nature of band degeneracies has recently been appreciated since the…
cond-mat.mtrl-sci2017★ 12 cited
Lattice-matched heterojunctions between topological and normal insulators: A first-principles study
Hyungjun Lee, Oleg V. Yazyev
Gapless boundary modes at the interface between topologically distinct regions are one of the most salient manifestations of topology in physics. Metallic boundary states of time-r…
cond-mat.mtrl-sci2016
Interplay between spin-orbit coupling and crystal-field effect in topological insulators
Hyungjun Lee, Oleg V. Yazyev
Band inversion, one of the key signatures of time-reversal invariant topological insulators (TIs), arises mostly due to the spin-orbit (SO) coupling. Here, based on ab initio densi…