Abstract
In this paper, we have extracted transport critical current density ([Formula: see text]) of BaZrO3 (BZO) added YBa2Cu3O[Formula: see text] (YBCO) by using several low electric field (E)-based criteria. By varying E-based criteria in order of magnitude, we have extracted [Formula: see text](T) and granular critical current density, [Formula: see text](T) by using JE (IV) characteristics. The temperature (T) dependence of [Formula: see text] and [Formula: see text] is found to be affected strongly as a result of the choice of E as criterion. The sensitiveness of [Formula: see text] and [Formula: see text] becomes prominent with the lowering of T. The Ambegaokar–Baratoff (AB) and the Ginzburg–Landau (GL) descriptions of [Formula: see text](T) and [Formula: see text](T) have been studied to understand how varying criteria may change the extraction of several associated coefficients. Extrapolated [Formula: see text]([Formula: see text]) and [Formula: see text]([Formula: see text]) is also highly sensitive to criteria used.
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