Metal-insulator transition accompanied with a charge ordering in the one-dimensional model

Tetsuya Mutou, Naokazu Shibata, Kazuo Ueda

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We study the metal-insulator transition accompanied with a charge ordering in the one-dimensional (Formula presented)-(Formula presented) model at quarter filling by the density-matrix renormalization-group method. In this model the nearest-neighbor hopping energy (Formula presented) competes with the next-nearest-neighbor exchange energy (Formula presented). We have found that a metal-insulator transition occurs at a finite value of (Formula presented); (Formula presented) and the transition is of first order. In the insulating phase for small (Formula presented), there is an alternating charge ordering and the system behaves as a one-dimensional quantum Heisenberg antiferromagnet. The metallic side belongs to the universality class of the Tomonaga-Luttinger liquids. The quantum phase transition is an example of melting of the one-dimensional quantum Heisenberg antiferromagnet.

Original languageEnglish
Pages (from-to)13702-13705
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number21
DOIs
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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