Lattice Effect of Strong Electron Correlation: Implication for Ferroelectricity and Superconductivity
- 3 September 1993
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 261 (5126) , 1307-1310
- https://doi.org/10.1126/science.261.5126.1307
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.Keywords
This publication has 22 references indexed in Scilit:
- Polaronic superconductivity in the absence of electron-hole symmetryPhysical Review B, 1993
- Sensitivity of doping states in the copper oxides to electron-lattice couplingPhysical Review Letters, 1992
- Superconductivity in narrow-band systems with local nonretarded attractive interactionsReviews of Modern Physics, 1990
- Applications of the polarizability model to various displacive-type ferroelectric systemsPhysical Review B, 1989
- Superconductivity in oxides: toward a unified pictureZeitschrift für Physik B Condensed Matter, 1989
- Possibility of a common origin to ferroelectricity and superconductivity in oxidesPhysical Review B, 1989
- Improved Hamiltonian variational technique for lattice modelsPhysical Review D, 1985
- Effect of Coulomb Interactions on the Peierls InstabilityPhysical Review Letters, 1983
- Coulomb Effects on One-Dimensional Peierls Instability: The Peierls-Hubbard ModelPhysical Review Letters, 1983
- Discovery of a Neutral-to-Ionic Phase Transition in Organic MaterialsPhysical Review Letters, 1981