Critical properties of metal-insulator transition in low dimensions

Masatoshi Imada*

*この研究の対応する著者

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Anomalous metallic states near the Mott insulator are analyzed in terms of the critical scaling toward the metal-insulator transition. Continuous transitions from a metal to the Mott insulator are characterized either by the mass divergence as in the bi-component systems or the vanishing carrier number as in the valence bond systems. A set of critical exponents in these two cases is deduced from the scaling theory. The correlation exponent v and the dynamical exponent z satisfy v = 1/2 d and z = 2 d when the mass diverges in d dimensions, while v = 1/2 and z = 2 if the carrier number vanishes. Crossovers between quantum critical regime and thermal critical regime inferred from this theory shed light on understanding experimental indications in high-Tc cuprates and other strongly correlated systems.

本文言語English
ページ(範囲)437-442
ページ数6
ジャーナルJournal of Low Temperature Physics
99
3-4
DOI
出版ステータスPublished - 1995 5 1
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「Critical properties of metal-insulator transition in low dimensions」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル