Activation Energy and Magnetic Susceptibility of Samarium Sulfide (SmS) under the Effect of Pressure at Constant Temperature

Abstract: The present paper addresses the activation energy and magnetic susceptibility in samarium sulfide (SmS) under the influence of pressure at constant temperature. The samarium sulfide has shown the pressure-induced NaCl (B1) to CsCl (B2) structural phase transition. In this transition, 4f energy level (valence band) of samarium sulfide has shifted towards the 5d conduction band within the band gap. The calculated values of magnetic susceptibility, activation energy and energy-band gap are in close agreement with the experimental results. Keywords: Activation energy, Magnetic susceptibility, Samarium sulfide.