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arXiv · 1307.4853

Edge States in Molecular Solid α-(BEDT-TTF)2I3: Effects of Electron Correlations

Yukiko Omori·Genki Matsuno·Akito Kobayashi
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Abstract

We examine the edge states of the Dirac electrons in the molecular material α-(BEDT-TTF)2I3 with electron-electron interactions. Based on the analysis of the extended Hubbard model with the Hartree-Fock approximation, we show that the charge-ordered phase has the gapless edge states only in the vicinity of the phase boundary between the zero-gap state and the charge-ordered phase. We also show a peculiar flux phase caused by the long-range Coulomb interaction with the same mechanism as topological Mott insulator phase.

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Yukiko Omori, Genki Matsuno, Akito Kobayashi. 2013-07-18. Edge States in Molecular Solid α-(BEDT-TTF)2I3: Effects of Electron Correlations. https://arxiv.org/abs/1307.4853

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