exactly solvable model of phase transitions

exactly solvable model of phase transitions

An exactly solvable model having a phase transition and in which only the interaction of fluctuations with equal and oppositely directed momenta is taken into account is investigated. The critical and tricritical regimes and the crossover between them are considered. The influence of frozen-in impur...

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Veröffentlicht in:Theor. Math. Phys.; (United States) 1987-06, Vol.71 (3), p.649-656
Hauptverfasser: Ivanchenko, Yu. M., Lisyanskii, A. A., Filippov, A. .
Format: Artikel
Sprache:eng
Schlagworte:
656100 - Condensed Matter Physics- Superconductivity
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL MODELS
ENERGY
FLUCTUATIONS
FREE ENERGY
GINZBURG-LANDAU THEORY
IMPURITIES
MATHEMATICAL MODELS
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUANTITY RATIO
RENORMALIZATION
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VARIATIONS
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Zusammenfassung:An exactly solvable model having a phase transition and in which only the interaction of fluctuations with equal and oppositely directed momenta is taken into account is investigated. The critical and tricritical regimes and the crossover between them are considered. The influence of frozen-in impurities on the phase transition is studied, and it is shown that in a narrow region, proportional to the impurity concentration, the phase transition is smeared.
ISSN:0040-5779
1573-9333
DOI:10.1007/BF01017099