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2006 | 109 | 4-5 | 647-652
Article title

Superconductivity, Charge Density Wave and Charge Kondo States in Systems of Coexisting Itinerant Electrons and Local Pairs

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EN
Abstracts
EN
The properties of a system of coexisting local pairs and itinerant electrons described by the (hard-core) boson-fermion model are discussed. For the first time we include into analysis of the model not only the superconducting and non-ordered (normal) states but also the charge density wave phases as well as the so-called charge Kondo state. Within an extended mean-field approximation, a mutual stability of charge density wave, superconducting and charge Kondo states are determined at T = 0 in the case of half-filled fermionic and bosonic bands.
Keywords
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
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, A. Bussmann-Holder, Phys. Rev. B, 66, 104516, 2002 and references therein
  • 4. A. Taraphder, P. Coleman, Phys. Rev. Lett., 66, 2814, 1991
  • 5. S. Robaszkiewicz, Acta Phys. Pol. A, 85, 117, 1994
  • 6. M. Sidowski, S. Robaszkiewicz, in preparation
  • 7. C. Lacroix, M. Cyrot, Phys. Rev. B, 20, 1969, 1979
  • 8. A.R. Ruppenthal, J.R. Iglesias, M.A. Gusmao, Phys. Rev. B, 60, 7321, 1999
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv109n433kz
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