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Eigensolution, expectation values and thermodynamic properties of the screened Kratzer potential
Date
2019-08-12
Author
Ikot, A. N.
Okorie, U. S.
Sever, Ramazan
Rampho, G. J.
Metadata
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Within the framework of non-relativistic quantum mechanics via the Nikiforov-Uvarov (NU) method, we obtained the energy eigenvalues and the corresponding normalized eigenfunctions of a newly proposed screened Kratzer potential for lithium hydride (LiH) and hydrogen chloride (HCl) diatomic molecules. With the help of the Hellman-Feynman theorem, the expressions for the expectation values of the square of inverse of position, r(-2), inverse of position, r(-1), kinetic energy, T, and square of momentum, p(2), and their respective numerical values for the selected diatomic molecules are presented. The vibrational partition function and other thermodynamic functions are also obtained in closed form for the diatomic molecules, using the energy eigenvalues. The results obtained clearly agree with the previously obtained results in the literature.
Subject Keywords
General Physics and Astronomy
URI
https://hdl.handle.net/11511/62903
Journal
EUROPEAN PHYSICAL JOURNAL PLUS
DOI
https://doi.org/10.1140/epjp/i2019-12783-x
Collections
Department of Physics, Article
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A. N. Ikot, U. S. Okorie, R. Sever, and G. J. Rampho, “Eigensolution, expectation values and thermodynamic properties of the screened Kratzer potential,”
EUROPEAN PHYSICAL JOURNAL PLUS
, pp. 0–0, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62903.