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1995 | 87 | 4-5 | 723-733
Article title

The Primary Role of Ionic Polarizability in Exotic Superconductivity

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EN
Abstracts
EN
The ionic polarizability of organic metals and of high-T_{c} cuprates is very high while the density of conduction electrons is low. As a result, the ionic polarizability screens out the electronic polarizability for states very close to the Fermi surface. The cut-off is determined by the dispersion of the ionic polarizability. The electron-phonon matrix element is very large for the ionically screened states, and is the cut-off for the electronically screened states. Therefore, the McMillan coupling constant λ_{ph} is very large at very low energies, and has a low energy cut-off. This model accounts for both normal and superconducting state anomalies in organic metals, as well as cuprates.
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Publisher

Year
Volume
87
Issue
4-5
Pages
723-733
Physical description
Dates
published
1995-04
Contributors
author
  • Racah Institute of Physics, Hebrew University, Jerusalem, Israel
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv87z404kz
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