Specific heat of a binary alloy within the CPA+DMFT method

The thermodynamic properties of a strongly correlated system with a binary type of disorder are investigated using the combination of the coherent potential approximation and dynamical mean-field theory. The specific heat has a peak at low temperatures for the concentrations close to the filling of...

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Bibliographic Details
Published in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2015-05, Vol.91 (19), Article 195141
Main Authors: Poteryaev, Alexander I., Skornyakov, Sergey L., Belozerov, Alexander S., Anisimov, Vladimir I.
Format: Article
Language:English
Subjects:
Binary alloys
Coherent potential approximation
Condensed matter
Disorders
Dynamical systems
Dynamics
Specific heat
Thermodynamic properties
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Summary:The thermodynamic properties of a strongly correlated system with a binary type of disorder are investigated using the combination of the coherent potential approximation and dynamical mean-field theory. The specific heat has a peak at low temperatures for the concentrations close to the filling of system. This peak is associated with the local moment formation due to Coulomb interaction. The linear coefficient to the specific heat is divergent and the system stays in the non-Fermi-liquid regime.
ISSN:1098-0121
1550-235X
DOI:10.1103/PhysRevB.91.195141