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2007 | 111 | 4 | 453-463
Article title

Superconductivity and Charge-Density Wave Phase in the Holstein Model: a Weak Coupling Limit

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Abstracts
EN
The variational canonical transformation method has been applied to the Holstein model to obtain an effective polaronic Hamiltonian, which is subsequently analyzed in the limit of a weak effective electron-electron interaction. A competition between the superconducting and charge-density wave phases has been studied in the light of strong polaronic effects. The phase diagrams illustrating the system evolution from adiabatic to anti-adiabatic limit are presented.
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Contributors
author
  • Solid State Theory Division, Institute of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
author
  • Solid State Theory Division, Institute of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
References
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv111n405kz
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