The Electronic Spectra of Charge‐Ordered Crystals | Zendy

Ionov S. P. | Zendy; Lubimov V. S. | Zendy; Manakova L. A. | Zendy; Makarov E. F. | Zendy

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The Electronic Spectra of Charge‐Ordered Crystals

Author(s) -

Ionov S. P.,

Lubimov V. S.,

Manakova L. A.,

Makarov E. F.

Publication year - 1977

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220810233

Subject(s) - charge (physics) , spectral line , isotropy , condensed matter physics , electron , kinetic energy , excitation , band gap , atomic physics , physics , materials science , quantum mechanics

The electronic excitation spectra for an isotropic charge‐ordered crystal are analysed on the basis of a band model. It is found that the charge‐ordered state is unstable relative to a transition into a state with pair correlation when the intra‐band attraction among the electrons exceeds a certain critical value which is a function of the kinetic energy and interaction parameters. In this situation a state is realized in which the charge order and the pair correlation are coexistent and which is possible at a finite value of the band width.

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