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On Gruneisen parameters of h.c.p. metals

Параметры Грюнайзена для h.c.p. металлов

  • Published:
Il Nuovo Cimento B (1971-1996)

Summary

Expressions derived by Toya for the electron-phonon matrix elements have been extended to hexagonal metals incorporating a modified form of correlation and exchange terms. Explicit expressions for Gruneisen parameters for symmetry directions are obtained and numerical computations are made for beryllium, magnesium and zinc. The results of these computations for mean Gruneisen constants are compared with different calculated results.

Riassunto

Si estendono le espressioni dedotte da Toya per gli elementi di matrice elettrone-fonone ai metalli esagonali includendo una forma modificata dei termini di correlazione e di scambio. Si ottengono espressioni esplicite dei parametri di Gruneisen per le direzioni di simmetria e si eseguono calcoli numerici per il berillio, il magnesio e lo zinco. Si confrontano i risultati di questi calcoli delle costanti di Gruneisen medie con diversi risultati calcolati.

Резюме

Выражения, выведенные Тойа для электрон-фононных матричных элементов, обобщаются на случай гексагональных металлов, учитывая модифицированную форму корреляционных и обменных членов. Ъыли получены точные выражения для параметров Грюнайзена для направлений симметрии. Проводится численный расчет для бериллия, магния и цинка. Результаты этих вычислений для средних постоянных Грюнайзена сравниваются с результатами других авторов.

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Authors and Affiliations

  1. Department of Physics, Banaras Hindu University, Varanasi

    J. R. Maurya & R. S. Srivastava

Authors
  1. J. R. Maurya
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  2. R. S. Srivastava
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Maurya, J.R., Srivastava, R.S. On Gruneisen parameters of h.c.p. metals. Nuovo Cim B 28, 395–406 (1975). https://doi.org/10.1007/BF02726665

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  • DOI: https://doi.org/10.1007/BF02726665

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