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01-16E

01-16E


By icmp_admin - Posted on 08 February 2012

UDC: 
537.226.33, 537.312.62
PACS: 
63.20.Ry, 64.60.-i, 71.10.Fd, 77.80.Bh

Thermodynamic properties of pseudospin-electron model in the gaussian fluctuation approximation

K.V. Tabunshchyk

An influence of the fluctuation effects on the thermodynamics of phase transitions in pseudospin-electron model is investigated. Within the framework of self-consistent gaussian fluctuation approach (based on the GRPA scheme) and Onysziewicz type approximation the grand canonical potential, pseudospin mean value, as well as the mean squares of fluctuations are calculated. The comparison of phase diagrams obtained within the the different gaussian fluctuation approaches between oneself and also with corresponding results calculated in the mean field type approximations is done.

Year: 
2001
Pages: 
20
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