The tight binding approximation and thermodynamic functions

Details The tight binding approximation and thermodynamic functions The tight binding approximation and thermodynamic functions

2010-10-08

arxiv.org/abs/1010.1590v1

Physics

Condensed Matter

Statistical Mechanics

24 pages, 16 figures

Scientific paper

The various thermodynamic functions dependence on degree of energy band occupation and temperature was studied. The one-band tight binding approximation for the electron energy spectrum was used. The Fermi energy, density of states, degeneracy temperature, chemical potential, partition function, thermodynamic potential, energy, free energy, entropy, heat capacity, spin magnetization and initial susceptibility were calculated. The limited energetic spectrum leads to the peculiarities in the behavior of these quantities in comparison with free electron gas.

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