Energy spectra and the expectation values of diatomic molecules confined by the shifted Deng-Fan potential
Department of Physics, Federal University Oye-Ekiti, P. M. B. 373, Ekiti State, Nigeria
2 Theoretical Physics Section, Department of Physics, University of Ilorin, Ilorin, Nigeria
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Accepted: 22 August 2018
Published online: 18 October 2018
The approximate bound state solutions of the Schrödinger equation with the shifted Deng-Fan potential was obtained via a proper quantization rule. The energy spectra for the homogenous diatomic molecules (H2, I2); the heterogeneous diatomic molecules (CO, HCl, LiH); the neutral transition metal hydrides (ScH, TiH, VH, CrH); the transition-metal lithide (CuLi); the transition-metal carbides (TiC, NiC); the transition metal nitrite (ScN) and the transition metal fluoride (ScF) were calculated. By applying the Hellmann-Feynman theorem, the expression for the expectation values of the square of inverse of position r-2, potential energy V, kinetic energy T and the square of momentum p2 were derived and the numerical values for diatomic molecules were presented. The result is reliable and very consistent with the available ones in the literature.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2018