Dirac equation and thermodynamic properties with the Modified Kratzer potential

In this work, we present the analytical solutions of Dirac equation for modified Kratzer potential in the pseudospin and spin symmetry limits using the formula method. The energies of the pseudospin and spin symmetry limit are obtained analytically and numerically. The numerical values are compared with those obtained in literature. Furthermore, we study the thermodynamic properties of some diatomic molecules within the nonrelativistic spin symmetry limits. Dirac equation; Modified Kratzer potential; Formular method; Thermodynamic properties.