229 citations · 764 across the 21 of their papers we have counts for
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Phase structure of topological insulators by lattice strong-coupling expansion
Yasufumi Araki, Taro Kimura, Akihiko Sekine +2
The effect of the strong electron correlation on the topological phase structure of 2-dimensional (2D) and 3D topological insulators is investigated, in terms of lattice gauge theo…
Weyl Semimetal in the Strong Coulomb Interaction Limit
Akihiko Sekine, Kentaro Nomura
We study the effects of strong long-range Coulomb interactions in a Weyl semimetal. We consider a three-dimensional (3D) Dirac fermion system on a lattice with a time-reversa…
Strong Coupling Expansion in a Correlated Three-Dimensional Topological Insulator
Akihiko Sekine, Takashi Z. Nakano, Yasufumi Araki +1
Motivated by recent studies which show that topological phases may emerge in strongly correlated electron systems, we theoretically study the strong electron correlation effect in…