Lattice Dynamical Calculation of Thermal Expansion Coefficient and Gruneisen Parameter for Lithium
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概要
- 論文の詳細を見る
Phonon frequencies, thermal expansion coefficient and Gruneisen parameters are calculated from the dispersion relation derived by Toya for bcc lithium. Improved correlation term derived by Sham on the basis of Thomas-Fermi approach has been incorporated. The phonon frequencies are in good qualitative agreement with the experiment. Lattice specific heats, thermal expansion coefficient and γM-the mean value of Gruneisen parameters at different temperatures have been calculated by this method and are presented in this paper. The results obtained show that the correlation term is an essential feature of realistic calcutations.
- 社団法人日本物理学会の論文
- 1972-11-05
著者
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Singh K.
Department of Physics, Guru Nanak Dev University
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Srivastava R.
Department Of Mathematics & Astronomy Lucknow University
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Srivastava R.
Department Of Physics Banaras Hindu University
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Singh K.
Department Of Chemistry Indian Institute Of Technology
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