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.

DOI: https://doi.org/10.1063/1.2222274

Abstract

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.

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About

• Item ORO ID
• 12302
• Item Type
• Journal Item
• ISSN
• 1551-7616
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	EP/C518365/1	EPSRC (Engineering and Physical Sciences Research Council)

• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Research Group
• Physics
• Depositing User
• James Hague