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:: year 9, Issue 1 (Journal of Acoustical Engineering Society of Iran (In Press) 2021) ::
مجله علمی پژوهشی انجمن مهندسی صوتیات ایران 2021, 9(1): 70-77 Back to browse issues page
Investigation of thermodynamic and phononic properties of HgTe in Zinc Blende phase using pseudopotential method (Research Article)
Z. Izadi, H. Salehi *
Abstract:   (174 Views)
In this paper, the phononic and thermodynamic properties of mercury telluride (HgTe) in Zinc Blende phase have been studied. The calculations have been performed with the pseudopotantial method by using Quntume Espresso package that is based on density functional theory. The result of the band structure indicates that the bottom of the conduction band touches the top of the valence band at Г point, this giving rise to zero bandgaps. The phonon spectrum shows that this compound has a frequancy gap between 80 cm-1 and 127 cm-1. Also, the study of thermal properties shows that the heat capacity of this compound in the Zinc Blende phase in low temperatures according to experience is proportional to the third power of temperature and high temperatures reach a value of saturation that is not temperature-dependent, which is consistent with experimental facts.
Keywords: Mercury telluride, Phononic properties, Thermodynamic properties.
Full-Text [PDF 132 kb]   (96 Downloads)    
Type of Study: Research | Subject: Sonophysics
Received: 2020/08/19 | Accepted: 2021/07/12 | Published: 2021/09/11
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Izadi Z, Salehi H. Investigation of thermodynamic and phononic properties of HgTe in Zinc Blende phase using pseudopotential method (Research Article). مجله علمی پژوهشی انجمن مهندسی صوتیات ایران. 2021; 9 (1) :70-77
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year 9, Issue 1 (Journal of Acoustical Engineering Society of Iran (In Press) 2021) Back to browse issues page
مجله علمی-پژوهشی انجمن lمهندسی صوتیات ایران Journal of Acoustical Engineering Society of Iran
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