Abstract
The properties of the f.c.c. lattice with the central nearest neighbour interaction are considered in the pseudoharmonic approximation. The dependence of the instability temperature on the arbitrary external pressure is investigated. It is shown that the instability region of the crystal is limited by the critical temperature and the critical pressure.
Резюме
Исследуются свойства ангармонической ГЦК решетки в псевдогармоническом приближении. Получена зависимость температуры неустойчивости от произвольного внешнего давления. Показано, что область устойчивости кристалла ограничена значениями критической температуры и критического давления.
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References
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Siklós, T. Theory of anharmonic crystals in pseudoharmonic approximation. Acta Physica 30, 193–201 (1971). https://doi.org/10.1007/BF03157858
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DOI: https://doi.org/10.1007/BF03157858