Temperature dependence of the upper critical field of high-Tc superconductors from isothermal magnetization data. Influence of a temperature dependent Ginzburg-Landau parameter
arXiv:cond-mat/0304308 · doi:10.1016/j.physc.2003.09.071
Abstract
We show that the scaling procedure, recently proposed for the evaluation of the temperature variation of the normalized upper critical field of type-II superconductors, may easily be modified in order to take into account a possible temperature dependence of the Ginzburg-Landau parameter kappa. As an example, we consider kappa (T) as it follows from the microscopic theory of superconductivity.
7 pages, 4 figure