Effects of lattice distortion on the energy gap of a BCS superconductor

The model of Mattis and Langer for superconductors with a structural distortion associated with doubling of the lattice periodicity is studied. New results for the zero-temperature superconducting gap are found in the case of more than a half-filled band. The modification of both the electron density of states and the reduced BCS interaction is taken into account. A comparison with the results found for the additive type model is given.

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Year of publication:	1976
Authors:	Brankov, J.G. ; Tonchev, N.S.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 84.1976, 2, p. 371-391
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010874398