A METHOD FOR THE CALCULATION OF THERMODYNAMIC FUNCTIONS FOR THE 3D MODEL SYSTEMS IN THE CRITICAL REGION

被引：0
|
作者：
YUKHNOVSKII, IR
KOZLOVSKII, MP
PYLYUK, IV
机构：
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES | 1991年 / 46卷 / 1-2期
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中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A method for the calculation of the thermodynamic functions in the three-dimensional Ising model near the phase transition is proposed. In the frame of a uniform approach, the critical exponents and the critical amplitudes of the main characteristics of the model (i.e. free energy, enthropy, specific heat, etc.) are obtained as functions of microscopic Hamiltonian parameters. It is shown that the correct sign and temperature behaviour of the entropy are provided due to the contribution of the long-wave spin moment modes. The short-wave ones are responsible for the values of the critical exponents.
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页码：1 / 7
页数：7
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