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    Phase Transition in High Temperature Superconductivity
    (Laikipia University, 2013) Kandie, D. K.,; Khanna, M. K...(et .al)
    The onset of superconductivity is accompanied by abrupt changes in various thermodynamic properties, which is the hallmark of a phase transition. At the superconducting transition, it suffers a discontinuous jump and, therefore, ceases to be linear resulting in change of volume, specific heat and entropy at the critical temperatureTC . Phase transitions are of first order when the latent heat L  0 , and are of the second-order phase transition when there is a specific heat jump at the transition temperature TC . In this study the variation of specific heat capacity with temperature for high temperature superconductors changes discontinuously but does not become infinite at TC showing a finite specific heat jump at the transition temperature and hence the phase transition is of second order. Keywords: Phase Transition, Superconductivity, Critical Temperature