Solutions of the Schrödinger equation and thermodynamic properties of a combined potential

• Main Authors: C.A. Onate, M.C. Onyeaju
• Format: Article
• Language: English
• Published: Elsevier 2021-03-01
• Series: Heliyon
• Subjects: Wave equation; Eigensolutions; Schrödinger equation; Thermodynamic properties
• Online Access: http://www.sciencedirect.com/science/article/pii/S2405844021005302

The solution of the radial Schrödinger equation was obtained using the methodology of supersymmetric approach with a combination of modified generalized Pöschl-Teller potential and inversely quadratic Yukawa potential model. The non-relativistic ro-vibrational energy spectra and the corresponding wave functions were obtained and numerical results were generated for some states. The variation of energy of the combined potential and the subsets potentials with the screening parameter for various quantum number were graphically studied. The effect of the potential parameters on the energy for different states was also studied numerically. For more usefulness and applications of the work, the vibrational partition function and the various thermal properties like mean energy, Helmholtz energy, heat capacity and entropy were calculated. The behaviour of the thermodynamic properties with respect to temperature change for various quantum number and maximum quantum states were examined in detail. The temperature has positive effect on all the thermal properties except the free energy.