On Phonon Dispersion in Alkali Metals

• Authors: P.N. Gajjar , B.Y. Thakore , H.K. Patel , A.R. Jani
• Languages of publication: EN

Abstracts

EN

In the present paper, the calculation of the phonon dispersion relations for alkali metals to second order in a local pseudopotential is discussed in terms of the real-space sum. Different forms of dielectric functions are employed to judge the varying effects of exchange and correlation on the phonon frequencies. The quantitative agreement of phonon frequencies for the alkali metals reflects, satisfactorily, the experimental trend.

Keywords

EN

71.25.Cx; 63.20.Dj

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 3
• Pages: 489-502

Dates

published

1995-09

received

1994-12-30

(unknown)

1995-05-12

Contributors

author

P.N. Gajjar

• Department of Physics, Sardar Patel University, Vallabh Vídyanagar 388 120, Gujarat, India

author

B.Y. Thakore

• Department of Physics, Sardar Patel University, Vallabh Vídyanagar 388 120, Gujarat, India

author

H.K. Patel

• Department of Physics, Sardar Patel University, Vallabh Vídyanagar 388 120, Gujarat, India

author

A.R. Jani

• Department of Physics, Sardar Patel University, Vallabh Vídyanagar 388 120, Gujarat, India