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BCS Theory Extended to Anisotropic and Layered High-Temperature Superconductors

  • T. Schneider
  • M. Frick
  • M. P. Sörensen
Part of the NATO ASI Series book series (NSSB, volume 246)

Abstract

Recent experiments have revealed several key features of the normal and superconducting states of high-temperature superconductors. They impose strong constraints on theoretical models of the phenomenon. Here we explore a tight-binding BCS-type model. The carriers form a narrow and anisotropic band, and are subject to on-site and nearest neighbor intralayer pairing, giving rise to x,y-gap anisotropy. The resulting properties agree remarkably well with experimental results, resolve con-flicting interpretations of experiments, offer an easily understandable physical picture, and point to the nature of the pairing mechanism.

Keywords

Penetration Depth Fermi Surface Spin Susceptibility Tunneling Conductance Normal State Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • T. Schneider
    • 1
  • M. Frick
    • 1
  • M. P. Sörensen
    • 1
  1. 1.IBM Research DivisionZurich Research LaboratoryRüschlikonSwitzerland

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