Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2011

Volume:

4

Number:

1

ISSN:

1829-1171

Official URL:

Coverage:

30-37

Abstract:

The effect of electron-phonon interaction (EPI) has been investigated using extended Falicov-Kimball model in an exact method. Phonon-induced hybridization term is considered in terms of electron operators. Average occupation number off-electrons, entropy, specific heat, and spin susceptibility are calculated. First-order valence transition occurs at an increased value of EPI. Double-peak structure is observed in specific heat curves. The specific heat coefficient g rises sharply at low temperatures. EPI increases the rate of growth of antiferromagnetic correlations.

Date created:

2011-06-20

Format:

pdf

Identifier:

oai:arar.sci.am:23290

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան