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Scientific article
English

Restricted screening and non-adiabatic electron-phonon coupling in high-Tc oxides

Published inPhysics Letters. A, vol. 164, no. 3-4, p. 345-348
Publication date1992
Abstract

The two-dimensional structure of typical high-Tc oxides leads to weak screening of phonons which involve z-displacements and have energy larger than the electronic kz-dispersion. Frozen phonon calculations in which the screening is restricted show qualitatively the tendency for very large electron-phonon coupling of such modes. Models of non-adiabatic coupling suggest stable conditions for charge fluctuations and gaps from pairwise interactions of electronic states.

Citation (ISO format)
JARLBORG, Thomas N. Restricted screening and non-adiabatic electron-phonon coupling in high-Tc oxides. In: Physics Letters. A, 1992, vol. 164, n° 3-4, p. 345–348. doi: 10.1016/0375-9601(92)91118-B
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ISSN of the journal0375-9601
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