Interplay of Lattice Dimerization and Charge Ordering in One-Dimensional Quarter-Filled Electron Systems(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• The effect of charge ordering on lattice dimerization has been investigated in the one-dimensional extended Peierls-Hubbard model at quarter filling. We estimate the strength of the lattice dimerization by applying the bosonization method and the perturbative renormalization-group method. In the ground state, it is shown that a first-order phase transition takes place between the dimerized insulator and the charge-ordered insulator. The lattice dimerization disappears in the charge-ordered state, while the lattice dimerization is appreciably suppressed even in the dimerized insulating state due to charge fluctuations. The phase diagram at finite temperature is also discussed.

• 社団法人日本物理学会の論文
• 2004-09-15

著者

• Tsuchiizu Masahisa

  Department Of Physics Nagoya University:(present) Yukawa Institute For Theoretical Physics Kyoto Uni

• Tsuchiizu Masahisa

  Department Of Physics Nagoya University

• Suzumura Y

  名古屋大 大学院理学研究科

• SUGIURA Muneo

  Department of Physics, Nagoya University

• SUZUMURA Yoshikazu

  Department of Physics, Nagoya University

• Sugiura Muneo

  Department Of Physics Nagoya University

• TSUCHIZU Masahisa

  Department of Physics, Nagoya University

• Suzumura Yoshikazu

  Department Of Physics Nagoya University

• Tsuchizu Masahisa

  Department Of Physics Nagoya University

• Suzumura Yoshikazu

  Department Of Physics Faculty Of Science Tohoku University

• Suzumura Yoshikatsu

  Department Of Physics Nagoya University:crest Japan Science And Technology Corporation (jst)

• SUZUMURA Yoshikazu

  Department of Physics, Faculty of Science Tohoku University

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