Exact and Poisson summation thermodynamic properties for diatomic molecules with shifted Tietz potential

Autor: Akpan N. Ikot, E. O. Chukwuocha, W. Azogor, F. E. Bazuaye, M. C. Onjeaju, Clement A. Onate, Uduakobong S. Okorie
Rok vydání: 2019
Předmět:
Zdroj: Indian Journal of Physics. 93:1171-1179
ISSN: 0974-9845
0973-1458
DOI: 10.1007/s12648-019-01375-0
Popis: We obtained in detail the energy spectra of the shifted Tietz potential using factorization method within the framework of non-relativistic quantum mechanics. With this energy, the thermodynamic properties of the electronic state of $$ 3^{3}\Sigma _{g}^{ + } $$ of $$ {\text{Cs}}_{2} $$ diatomic molecules are obtained using exact and Poisson summation formalism for the shifted Tietz potential, with adjustable parameter (optimization) appearing in the shifted Tietz potential function ranging from $$ C_{h} \, = \, \pm \,\frac{1}{5},\; \pm \,\frac{1}{8} $$ and $$ \pm \,\frac{1}{4} $$ respectively. Free energy F, internal energy U, entropy S and specific heat C are also calculated. In each case, the exact and Poisson summation states are plotted for the electronic state $$ 3^{3}\Sigma _{g}^{ + } $$ of $$ {\text{Cs}}_{2} $$ diatomic molecules with various optimization parameters.
Databáze: OpenAIRE
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