Einstein-Debye Yaklaşımı Kullanılarak Kalaylı Selenidin (SnSe) Bir Fonksiyon Sıcaklığı Olarak Isı Kapasitelerinin Teorik Olarak İncelenmesi

Einstein-Debye yaklaşımına dayalı olarak kalaylı selenidin (SnSe) ısı kapasitelerini değerlendirmek için yeni bir alternatif yaklaşım önerilmiştir. Katıların ısıl davranışının, Einstein, Debye ve yakın zamanda geliştirilen Einstein-Debye yaklaşımları ile iyice araştırılan çok önemli bir teorik problem olduğu iyi bilinmektedir. Malzemelerin birçok ek termofiziksel özelliği, bu çalışmada kullanılan Einstein-Debye yaklaşımı kullanılarak analiz edilebilir. Bir uygulama olarak, ısı kapasiteleri 40 ila 900 K arasındaki sıcaklıklarda SnSe için Einstein-Debye yöntemi kullanılarak hesaplanmıştır. Isı kapasitelerinin sıcaklığa bağlılığı hesaplanmış ve geniş bir sıcaklık aralığında literatürle iyi bir uyum içinde olduğu bulunmuştur.

Anahtar Kelimeler:

Einstein-Debye yöntemi, Isı kapasitesi, Selenid, Debye fonsiyonu

Theoretical Investigation of Heat Capacities as a Function Temperature of Stannous Selenide (SnSe) Using Einstein-Debye Approximation

A new alternative approach has been suggested for evaluating the heat capacities of stannous selenide (SnSe), based on the Einstein-Debye approximation. It is well known the thermal behavior of solids is a very important theoretical problem that has been explored thoroughly with the development of Einstein, Debye and recently developed Einstein-Debye approximations. Many additional thermophysical characteristics of materials may be analyzed using the Einstein-Debye approach employed in this study. As an application, the heat capacities have been computed by using the Einstein-Debye method for SnSe in the temperatures range between 40 and 900 K. The temperature dependence of heat capacities have been computed and found to be in good accord with the literature throughout a wide temperature range.

Keywords:

Einstein-Debye method, Heat capacity, Selenide, Debye function,

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