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A. Kortyka, R. Puzniak, A. Wisniewski, H. W. Weber, T. Doyle, Y.Q. Cai, X. Yao:
"Influence of low-level Pr substitution on the superconducting properties of YBa₂Cu₃O_7-δ single crystals";
Journal of Physics: Conference Series, 150 (2009), 052123; 1 - 4.

We report on measurements on Y_1-xPr_xBa₂Cu₃O_7-δ single crystals, with x varying from 0 to 2,4%. The upper and the lower critical fields, H_c2 and H_c1, the Ginzburg-Landau parameter, κ, and the critical current density, J_c(B), were determined form magnetization measurements and the effective media approach scaling method. We present the influence of Pr substitution on the pinning force density as well as on the trapped field profiles analyzed by Hall probe scanning.

http://dx.doi.org/10.1088/1742-6596/150/5/052123

http://publik.tuwien.ac.at/files/PubDat_174687.pdf