Orientational Peierls Transition in Quasi One-Dimensional Organic Solids
- 28 April 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 34 (17) , 1096-1099
- https://doi.org/10.1103/physrevlett.34.1096
Abstract
A simple model of a stack of planar molecular ions is considered in tight-binding approximation. I show that the modulation of the transfer integral of the extended -electron wave functions of two adjacent molecular ions by a rotational degree of freedom and the softening of the corresponding zone boundary libron leads to an orientational Peierls transition. The possible relevance to the metal-insulator transition in tetrathiafulvalene tetracyanoquinodimethane is stressed.
Keywords
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