BAND STRUCTURE AND THERMODYNAMIC POTENTIALS

被引:2
|
作者
Kuznetsov, A. V. [1 ]
Karpenko, B. V. [2 ]
Dyakin, V. V. [2 ]
机构
[1] Ural State Univ, Ekaterinburg, Russia
[2] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg, Russia
基金
俄罗斯基础研究基金会;
关键词
band structure; limited energy spectrum; strong coupling; Fermi statistics; thermodynamic potentials;
D O I
10.1007/s11182-012-9733-5
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The behavior of different thermodynamic functions of a system of delocalized electrons in a crystal is considered in the single-band strong coupling approximation depending on the degree of energy band filling and temperature. The chemical potential, grand thermodynamic potential, internal energy, free energy, entropy, and heat capacity are numerically calculated. Dependences of these quantities on the electron concentration at high temperatures are investigated. Their limited energy spectrum leads to the special features in the behavior of these quantities in comparison with the free electron gas.
引用
收藏
页码:1208 / 1217
页数:10
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