Dielectric Properties and Electron Spectrum of the Müller Model in the High-Temperature Superconductivity Theory

• Autorzy: I.V. Stasyuk , A.M. Shvaika
• Języki publikacji: EN

Abstrakty

EN

The paper is devoted to the investigation of the single-electron excitation spectrum, effective exchange interaction and dielectric susceptibility of the Muller model for high-temperature superconductivity. It is shown that the interaction with the anharmonic vibration mode leads to the additional splitting of the electron bands and their narrowing. The sign of the effective exchange interaction between electrons depends on the local state of the vibration subsystem. The electron and pseudospin (lattice) contributions to the transverse dielectric susceptibility are investigated.

Słowa kluczowe

EN

74.65.+n   71.45.Gm  

• Czasopismo: Acta Physica Polonica A
• Rocznik: 1993
• Tom: 84
• Numer: 2
• Strony: 293-313

Daty

wydano

1993-08

otrzymano

1992-10-05

(nieznana)

1993-04-30

Twórcy

autor

I.V. Stasyuk

• Institute for Condensed Matter Physics, Ukrainian Academy of Sciences, Svientsitsky St. 1, Lviv 290011, Ukraine

autor

A.M. Shvaika

• Institute for Condensed Matter Physics, Ukrainian Academy of Sciences, Svientsitsky St. 1, Lviv 290011, Ukraine

Identyfikatory

DOI

10.12693/APhysPolA.84.293