Study of the specific heat for the binary alloy in the CPA+DMFT method
Alexander I. Poteryaev, Sergey V. Skornyakov, Alexander S. Belozerov,, and Vladimir I. Anisimov
TL;DR
This paper investigates the thermodynamic properties of a strongly correlated binary alloy using CPA+DMFT, revealing a specific heat peak at low temperatures linked to local moment formation and non-Fermi-liquid behavior.
Contribution
It introduces a combined CPA+DMFT approach to study specific heat and thermodynamics in disordered strongly correlated systems, highlighting non-Fermi-liquid characteristics.
Findings
Specific heat peaks at low temperatures near certain concentrations.
Divergent linear coefficient indicating non-Fermi-liquid behavior.
Local moment formation due to Coulomb interactions.
Abstract
The thermodynamic properties of strongly correlated system with 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 small 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.
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Taxonomy
TopicsAdvanced ceramic materials synthesis · Magnesium Oxide Properties and Applications · Semiconductor materials and devices