Nonmagnetic Insulating States near the Mott Transitions on Lattices with Geometrical Frustration and Implications for κ-(ET)2Cu 2(CN)3

Hidekazu Morita*, Shinji Watanabe, Masatoshi Imada

*この研究の対応する著者

研究成果: Article査読

236 被引用数 (Scopus)

抄録

We study phase diagrams of the Hubbard model on anisotropic triangular lattices, which also represents a model for κ-type BEDT-TTF compounds. In contrast with mean-field predictions, path-integral renormalization group calculations show a universal presence of a nonmagnetic insulator sandwiched by an antiferromagnetic insulator and paramagnetic metals. The nonmagnetic phase does not show simple translational symmetry breakings such as flux phases, implying a genuine Mott insulator. We discuss possible relevance to the nonmagnetic insulating phase found in κ-(ET)2Cu 2(CN)3.

本文言語English
ページ(範囲)2109-2112
ページ数4
ジャーナルjournal of the physical society of japan
71
9
DOI
出版ステータスPublished - 2002 9
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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「Nonmagnetic Insulating States near the Mott Transitions on Lattices with Geometrical Frustration and Implications for κ-(ET)<sub>2</sub>Cu <sub>2</sub>(CN)<sub>3</sub>」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。

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