On the thermal vacancy effects on thermodynamic properties and stability of Van der Waals crystals

Reverting to an investigation of thermal vacancies in simple Van der Waals crystals [phys. stat. sol. (b) 101, 95 (1980)] we take into account the possibility of forming their bonded complexes, in particular divacancies. We use the correlative method of the unsymmetrized self-consistent field (CUSF) that enables one to include the strong anharmonicity of the lattice vibrations. We have calculated the parameters of the vacancy formation, the vacancy and divacancy concentration in solid Ar and contribution of the defects to its equilibrium thermodynamic properties, depending on the temperature and pressure, such contributions to components of the elastic tensor are studied for the first time. We also investigate the influence of defects on the thermodynamic stability of crystal lattice. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.

Авторы
Zubov V.I. 1, 2 , Zubov I.V. 1, 2
Редакторы
-
Издательство
-
Номер выпуска
12
Язык
Английский
Страницы
2711-2718
Статус
Опубликовано
Подразделение
-
Номер
-
Том
243
Год
2006
Организации
  • 1 Departamento de Física, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
  • 2 Department of Theoretical Physics, Peoples' Friendship University, 117198, Moscow, Russian Federation
Ключевые слова
-
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/3334/