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Theoretical Studies on Phase Transitions in Quasi-One-Dimensional Molecular Conductors
Department of Physics, Nara Women’s University, Nara 630-8506, Japan
Advanced Institute for Computational Science, RIKEN, Kobe, Hyogo 650-0047, Japan
Condensed Matter Theory Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Wako, Saitama 351-0198, Japan
* Author to whom correspondence should be addressed.
Received: 16 April 2012; in revised form: 3 July 2012 / Accepted: 4 July 2012 / Published: 19 July 2012
Abstract: 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.
Keywords: molecular conductors; quasi-one-dimension; phase transition; charge order; metal-insulator transition; symmetry breaking; bosonization; renormalization group; quantum Monte Carlo; extended Hubbard model
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MDPI and ACS Style
Yoshioka, H.; Otsuka, Y.; Seo, H. Theoretical Studies on Phase Transitions in Quasi-One-Dimensional Molecular Conductors. Crystals 2012, 2, 996-1016.
Yoshioka H, Otsuka Y, Seo H. Theoretical Studies on Phase Transitions in Quasi-One-Dimensional Molecular Conductors. Crystals. 2012; 2(3):996-1016.
Yoshioka, Hideo; Otsuka, Yuichi; Seo, Hitoshi. 2012. "Theoretical Studies on Phase Transitions in Quasi-One-Dimensional Molecular Conductors." Crystals 2, no. 3: 996-1016.