PL EN


Preferences help
enabled [disable] Abstract
Number of results
2000 | 97 | 3 | 393-397
Article title

Phase Fluctuations and BCS-LP Crossover in 2D Short Coherence Length Superconductors

Content
Title variants
Languages of publication
EN
Abstracts
EN
We study the effects of phase fluctuations in 2D short-coherence length superconductors on the basis of the extended Hubbard model with intersite attraction. In the Kosterlitz-Thouless scenario the critical temperatures for anisotropic pairings were determined and compared with the ones from BCS Hartree-Fock approximation. The Uemura-type plots, i.e. the critical temperature vs. zero temperature phase stiffness, were obtained for extended s-wave and d_{x^{2}-y^{2}}-wave pairings. We also discuss the crossover from BCS to local pair superconductivity for d-wave pairing.
Keywords
Contributors
  • Institute of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
author
  • Institute of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv97z308kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.