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Number of results
2004 | 106 | 5 | 745-749
Article title

Superconductivity versus Diagonal Disorder in the (Hard-Core) Boson-Fermion Model

Content
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EN
Abstracts
EN
The influence of randomness of local pair site energies on superconducting properties of a system of coexisting local pairs and itinerant electrons described by the (hard-core) boson-fermion model is analyzed within variational BCS Hartree-Fock approach. Assuming the rectangular distribution function of the random potential the phase diagrams, critical temperatures, and the chemical potential behaviours are determined.
Keywords
EN
Contributors
author
  • Institute of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
  • 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
  • 1. S. Robaszkiewicz, R. Micnas, J. Ranninger, Phys. Rev. B, 36, 180, 1987; J. Ranninger, S. Robaszkiewicz,Physica B, 135, 468, 1985
  • 2. R. Micnas, J. Ranninger, S. Robaszkiewicz, Rev. Mod. Phys., 62, 113, 1990 and references therein
  • 3. R. Micnas, S. Robaszkiewicz, in: High-T_c Superconductivity 1996: Ten Years after the Discovery, Eds. E. Kaldis, E. Liarokapis, K.A. Muller, NATO ASI Series E, Vol. 342, Kluwer Academic Publishers, The Netherlands 1997, p. 31 and references therein
  • 4. R. Micnas, S. Robaszkiewicz, A. Bussmann-Holder, Phys. Rev. B, 66, 104516, 2002
  • 5. See e.g. Y. Ohashi, A. Griffin, Phys. Rev. Lett., 89, 130402, 2002
  • 6. G. Pawl owski, S. Robaszkiewicz, Mol. Phys. Rep., 34/1, 76, 2001; Phys. Status Solidi B, 236, 400, 2003
  • 7. T. Domański, K.I. Wysokiński, Phys. Rev. B, 66, 064517, 2002
  • 8. G. Pawlowski, S. Robaszkiewicz, R. Micnas, J. Supercond., 17, 33, 2004
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv106n527kz
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