Lattice effect of strong electron correlation: Implication for ferroelectricity and superconductivity

T. Egami, S. Ishihara, M. Tachiki

研究成果: Article査読

156 被引用数 (Scopus)

抄録

Much theoretical work has been devoted to understanding the role of strong electron correlations in high-temperature superconductivity mainly through magnetic interactions, but the possible role of electron correlation in ferroelectricity of metal oxides has not received attention. Diagonalization of a simple many-body, tight-binding Hamiltonian shows that the electron-lattice interaction is dramatically enhanced in some cases by strong electron correlation because of deformation-induced charge transfer. This effect may be closely related to ferroelectricity and superconductivity in transition metal oxides.

本文言語English
ページ(範囲)1307-1310
ページ数4
ジャーナルScience
261
5126
DOI
出版ステータスPublished - 1993
外部発表はい

ASJC Scopus subject areas

  • 一般

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