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arXiv 1202.4569cond-mat.stat-mech
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三维Ising类模型的Gibbs自由能和Helmholtz自由能

Gibbs free energy and Helmholtz free energy for a three-dimensional Ising-like model

M. P. Kozlovskii, R. V. Romanik

摘要:

在微观层次上研究了三维类伊辛系统的临界行为。有序化的自由能作为温度、外场和模型初始参数的显式函数进行解析计算。在一个统一的方法,吉布斯和亥姆霍兹自由能得到的依赖性,它们对外场和序参量,分别以图形方式呈现。在序参量-温度平面上建立了稳定区、亚稳区和不稳定区。提出了在微观层次上实现著名的麦克斯韦构造的方法。

英文摘要:

The critical behavior of a 3D Ising-like system is studied at the microscopic level of consideration. The free energy of ordering is calculated analytically as an explicit function of temperature, an external field and the initial parameters of the model. Within a unified approach, both Gibbs and Helmholtz free energies are obtained and the dependencies of them on the external field and the order parameter, respectively, are presented graphically. The regions of stability, metastability, and unstability are established on the order parameter-temperature plane. The way of implementation of the well-known Maxwell construction is proposed at microscopic level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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