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 |
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Pages (from-to) | 1307-1310 |
Number of pages | 4 |
Journal | Science |
Volume | 261 |
Issue number | 5126 |
DOIs | |
Publication status | Published - 1993 |
Externally published | Yes |
ASJC Scopus subject areas
- General