Thermal and elastic properties of solid sodium based on an effective interionic potential

Basing on the Schiff effective interionic potential which has oscillatory character we have calculated a complete set of equilibrium thermodynamic properties of solid sodium at normal pressure above the martensitic transition temperature. To take into account the anharmonicity which is strong at high temperatures we use the correlative method of unsymmetrized self-consistent field elaborated previously. Our results are in agreement with measured values and with available data of computer simulations. We discuss the thermodynamic stability of the b.c.c. lattice of sodium and the mechanism of its loss. The metastability of a hypothetical f.c.c. lattice with Schiff potential is discussed.

Authors
Zubov V.I. 1, 2 , Sanchez J.F. 1, 3 , Tretiakov N.P. 1, 2 , Caparica A.A.1
Editors
-
Publisher
-
Number of issue
1
Language
English
Pages
27-37
Status
Published
Department
-
Number
-
Volume
200
Year
1997
Organizations
  • 1 Departamento de Física, Univ., Federal de Goiás, C.P. 131, 74001-970 Goiânia-Goiás, Brazil
  • 2 Department of Theoretical Physics, Peoples' Friendship University, Moscow, Russian Federation
  • 3 Depto. de Fis. e Matemátika, Universidad Cayetano Heredia, Lima, Peru
Keywords
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Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/773/