Theory of fluctuation superconductivity from electron-phonon interactions in pseudo-one-dimensional systems
- 1 January 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 9 (1) , 119-129
- https://doi.org/10.1103/physrevb.9.119
Abstract
The physics of quasi-one-dimensional solids which undergo a Peierls distortion, such as the organic material TTF-TCNQ (tetrathiofulvalinium-tetracyanoquinodimethan) is discussed. In particular, the effect of fluctuations into the Fröhlich superconducting state on the free energy and the electrical conductivity is examined theoretically at temperatures above that of the Peierls distortion. A phenomenological approach is used, but the physical basis for a microscopic treatment is given and the results are compared with the effect of fluctuations into a BCS superconducting state. It is found that such fluctuations give a paraconductivity which is too small to account for the extraordinary conductivity peaks reported for TTF-TCNQ.Keywords
This publication has 14 references indexed in Scilit:
- Microwave conductivities of the organic conductors TTF-TCNQ and ATTF-TCNQSolid State Communications, 1973
- Theory of the peierls soft-mode induced superconducting instability of a linear chain conductorSolid State Communications, 1973
- Conductivity, Superconductivity, and the Peierls InstabilityPhysical Review Letters, 1973
- Fluctuation Effects at a Peierls TransitionPhysical Review Letters, 1973
- Superconducting fluctuations in one-dimensional organic solidsSolid State Communications, 1973
- Superconducting fluctuations and the peierls instability in an organic solidSolid State Communications, 1973
- Crystal structure of the radical-cation radical-anion salt from 2,2′-bi-1,3-dithiole and 7,7,8,8-tetracyanoquinodimethaneJournal of the Chemical Society, Chemical Communications, 1973
- Electrodynamics of Superconducting Alloys in High Magnetic FieldsPhysical Review B, 1966
- The thermal decomposition of ammonium perchlorate II. The kinetics of the decomposition, the effect of particle size, and discussion of resultsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1955
- On the theory of superconductivity: the one-dimensional caseProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1954