Strong-Coupling Theory of Charge-Density-Wave Transitions

11 July 1983

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 51 (2) , 138-141
https://doi.org/10.1103/physrevlett.51.138

Abstract

The order-of-magnitude discrepancy between the predictions of the weak-coupling theory of charge-density-wave transitions and the observations is rectified by construction of a microscopic strong-coupling theory. The essential ingredients of the theory are the strong wave-vector dependence of electronically induced anharmonicity and mode-mode coupling which are shown to strongly depress the transition.

Keywords

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