Diagram technique in an improved nonsymmetrized self-consistent field method

The free energy of a strongly anharmonic crystal is expanded in powers of a small parameter which is the ratio between the mean amplitude of thermal atom vibrations and the interatomic spacing, where the main contribution of the principal anharmonic terms is included in the zeroth approximation (the nonsymmetrized self-consistent field approximation). A diagram representation is used to calculate the corrections. As an illustration of the method, the corrections to the free energy of a strongly anharmonic monatomic linear chain are obtained. © 1984 Plenum Publishing Corporation.

Authors
Publisher
Kluwer Academic Publishers-Plenum Publishers
Number of issue
6
Language
English
Pages
503-508
Status
Published
Volume
27
Year
1984
Organizations
  • 1 Patrice Lumumba People's Friendship University, Russia
Keywords
ANHARMONIC CRYSTAL; DIAGRAM TECHNIQUE; INTERATOMIC SPACING; NONSYMMETRIZED SELF-CONSISTENT FIELD METHOD; CRYSTALS
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/1387/