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2008 | 114 | 1 | 209-212
Article title

Superconductivity in the Penson-Kolb Model on a Triangular Lattice

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Languages of publication
EN
Abstracts
EN
We investigate properties of the two-dimensional Penson-Kolb model with repulsive pair hopping interaction. In the case of a bipartite square lattice this interaction may lead to the eta-type pairing, when the phase of superconducting order parameter changes from one lattice site to the neighboring one. We show that this interaction may be responsible for the onset of superconductivity also for a triangular lattice. We discuss the spatial dependence of the superconducting order parameter and demonstrate that the total momentum of the paired electrons is determined by the lattice geometry.
Keywords
EN
Publisher

Year
Volume
114
Issue
1
Pages
209-212
Physical description
Dates
published
2008-07
received
2007-11-06
Contributors
author
  • Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
  • Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
References
  • 1. K.A. Penson, M. Kolb, Phys. Rev. B 33, 1663 (1986)
  • 2. S. Robaszkiewicz, B.R. Bułka, Phys. Rev. B 59, 6430 (1999)
  • 3. W.R. Czart, S. Robaszkiewicz, Phys. Rev. B 64, 104511 (2001)
  • 4. S. Robaszkiewicz, W.R. Czart, Phys. Status Solidi B 236, 416 (2003)
  • 5. M. Mierzejewski, M.M. Maśka, Phys. Rev. B 69, 054502 (2004)
  • 6. C.N. Yang, Phys. Rev. Lett. 63, 2144 (1989)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv114n131kz
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