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Specific heat of high temperature superconductors: Role of $\mid ψ\mid^{4}$ term in Ginzburg--Landau free energy

Bikash. Ch. Gupta·K. K. Nanda
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Abstract

We have derived the expression for the specific heat by using Ginzburg-Landau (GL) theory by taking $\mid ψ\mid^{4}$ into account in the Hartree approximation. Without this term, the specific heat diverges at $T=T_{c}(B)$. It is also shown that width and shape of the transition depends on the value of $α$ and $β$, the coefficients in the GL free energy.

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Bikash. Ch. Gupta, K. K. Nanda. 1996-05-19. Specific heat of high temperature superconductors: Role of $\mid ψ\mid^{4}$ term in Ginzburg--Landau free energy. https://doi.org/10.1016/0921-4534(96)00300-0

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