Thermodynamic Properties of Diatomic Molecules in the Presence of Magnetic and Aharonov–Bohm (AB) Flux Fields with Shifted Screened Kratzer Potential

It is well-known that diatomic molecules are molecules that consist of two atoms bonded together chemically. The use of diatomic molecules is broad and has various applications in different fields of study, such as physical sciences and life sciences. Therefore, in this study, the effects of magnetic and AB-flux fields on thermodynamic properties of hydrogen (H₂), lithium hydride (LiH), hydrogen chloride (HCl) and carbon monoxide (CO) diatomic molecules are investigated. The analytical expressions for the partition function are derived using the energy equation by employing the Euler–Maclaurin summation formula. These properties obtained are thoroughly analyzed utilizing graphical representations as a function of temperature. It was observed that the entropy of the CO diatomic molecule exhibits a paramagnetic behavior which agrees with the Linde cycle when the system is subjected to the magnetic and AB-flux fields. Our findings will be valuable in various technological and scientific fields such as magnetic refrigeration, magnetic levitation, magnetic separation, magnetic storage, magnetic resonance imaging and magnetic force microscopy.