Edge States in Molecular Solid \alpha-(BEDT-TTF)2I3: Effects of Electron Correlations
Strongly Correlated Electrons
2013-07-19 v1
Abstract
We examine the edge states of the Dirac electrons in the molecular material \alpha-(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.
Keywords
Cite
@article{arxiv.1307.4853,
title = {Edge States in Molecular Solid \alpha-(BEDT-TTF)2I3: Effects of Electron Correlations},
author = {Yukiko Omori and Genki Matsuno and Akito Kobayashi},
journal= {arXiv preprint arXiv:1307.4853},
year = {2013}
}