Dispersion anomalies induced by the low-energy plasmon in the cuprates

Details Dispersion anomalies induced by the low-energy plasmon in the cuprates Dispersion anomalies induced by the low-energy plasmon in the cuprates

2007-01-18

arxiv.org/abs/cond-mat/0701465v1

Phys. Rev. B75, 020508 (2007)

Physics

Condensed Matter

Superconductivity

5 eps figures, revtex

Scientific paper

We discuss the characteristic effects of the electron plasmon interaction resulting from the ~ 1 eV plasmon, which is a universal feature in the cuprates. Using the framework of a one-band tight binding model, we identify signatures of this low energy plasmon in the electronic structure of metallic overdoped Bi2212 as well as half-filled insulating SCOC. The electron-plasmon interaction is found to yield renormalizations near the Fermi energy in reasonable accord with experimental observations, and to produce dispersion anomalies at higher energies.

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