Theoretical Studies on Phase Transitions in Quasi-One-Dimensional Molecular Conductors

A review is given for recent theoretical studies on phase transitions in quasi-one-dimensional molecular conductors with a quarter-filled band. By lowering temperature, charge transfer salts exhibit a variety of transitions accompanying symmetry breaking, such as charge ordering, lattice dimerizatio...

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Veröffentlicht in:Crystals (Basel) 2012-07, Vol.2 (3), p.996-1016
Hauptverfasser: Yoshioka, Hideo, Otsuka, Yuichi, Seo, Hitoshi
Format: Artikel
Sprache:eng
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Zusammenfassung:A review is given for recent theoretical studies on phase transitions in quasi-one-dimensional molecular conductors with a quarter-filled band. By lowering temperature, charge transfer salts exhibit a variety of transitions accompanying symmetry breaking, such as charge ordering, lattice dimerization, antiferromagnetic transition, spin-Peierls distortion, and so on. Analyses on microscopic quasi-one-dimensional models provide their systematic understandings, by the complementary use of different analytical and numerical techniques; they can reproduce finite-temperature phase transitions, whose results can be directly compared with experiments and give feedbacks to material design.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst2030996