Coexistence of Charge Order and Spin-Peierls Lattice Distortion in One-Dimensional Organic Conductors

dc.creatorKuwabara, Makoto
dc.creatorSeo, Hitoshi
dc.creatorOgata, Masao
dc.date2003-01-14
dc.date.accessioned2026-07-07T02:49:08Z
dc.date.available2026-07-07T02:49:08Z
dc.descriptionThe electronic properties of quarter-filled organic materials showing spin-Peierls transition are investigated theoretically. By studying the one-dimensional extended Peierls-Hubbard model analytically as well as numerically, we find that there is a competition between two different spin-Peierls states due to the tetramized lattice distortion in the strongly correlated regime. One is accompanied by lattice dimerization which can be interpreted as a spontaneous Mott insulator, while the other shows the existence of charge order of Wigner crystal-type. Results of numerical density matrix renormalization group computations on sufficiently large system sizes show that the latter is stabilized in the ground state when both the on-site and the inter-site Coulomb interactions are large.
dc.description8 pages, 3 pages, to be published in J. Phys. Soc. Jpn., Vol. 72 No. 2
dc.identifierhttps://arxiv.org/abs/cond-mat/0301208
dc.identifierhttp://arxiv.org/abs/cond-mat/0301208
dc.identifierJ. Phys. Soc. Jpn. 72, 225 (2003)
dc.identifierdoi:10.1143/JPSJ.72.225
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20674
dc.subjectStrongly Correlated Electrons
dc.titleCoexistence of Charge Order and Spin-Peierls Lattice Distortion in One-Dimensional Organic Conductors
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