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Extending the theory of phonon-mediated superconductivity in quasi-2D

Hague, J. P. (2006). Extending the theory of phonon-mediated superconductivity in quasi-2D. AIP Conference Proceedings, 846(1) pp. 255–264.

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I present results from an extended Migdal-Eliashberg theory of electron-phonon interactions and superconductivity. The history of the electron-phonon problem is introduced, and then study of the intermediate parameter regime is justified from the energy scales in the cuprate superconductors. The Holstein model is detailed, and limiting cases are examined to demonstrate the need for an extended theory of superconductivity. Results of the extended approximation are shown, including spectral functions and phase diagrams. These are discussed with reference to Hohenberg's theorem, the Bardeen-Cooper-Schrieffer theory and Coulomb repulsion.

Item Type: Journal Article
ISSN: 1551-7616
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetEP/C518365/1EPSRC (Engineering and Physical Sciences Research Council)
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Biomedical Research Network (BRN)
Item ID: 12302
Depositing User: James Hague
Date Deposited: 13 May 2009 15:49
Last Modified: 08 Mar 2014 02:35
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