Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 1307-1310 |
| Number of pages | 4 |
| Journal | Science |
| Volume | 261 |
| Issue number | 5126 |
| DOIs | |
| Publication status | Published - 1993 Jan 1 |
ASJC Scopus subject areas
- General
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Egami, T., Ishihara, S., & Tachiki, M. (1993). Lattice effect of strong electron correlation: Implication for ferroelectricity and superconductivity. Science, 261(5126), 1307-1310. https://doi.org/10.1126/science.261.5126.1307