Dynamical study of the temperature dependence of grüneisen parameters in alkali metals | Zendy

Singh V. P. | Zendy; Hemkar M. P. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Dynamical study of the temperature dependence of grüneisen parameters in alkali metals

Author(s) -

Singh V. P.,

Hemkar M. P.

Publication year - 1976

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220780139

Subject(s) - brillouin zone , alkali metal , wave vector , symmetry (geometry) , space (punctuation) , function (biology) , thermodynamics , condensed matter physics , chemistry , materials science , physics , quantum mechanics , mathematics , geometry , linguistics , philosophy , evolutionary biology , biology

Using a non‐central force model the microscopic Grüneisen parameters γ q , j and the effective value γ G at different temperatures are calculated for the alkali metals in terms of elastic constants and their pressure derivatives. The microscopic Grüneisen parameters γ q , j are calculated as a function of wave vector q along the principal symmetry directions [100], [110], [111], [210], [211], and [221] and the values are averaged over the wave vector space in the first Brillouin zone using the modified Houston spherical six term integration method. The results obtained for γ G show a fairly good agreement with the experimental observations.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research