Authors: R V Vovk Z F Nazyrov L I Goulatis A Chroneos
Publish Date: 2012/09/27
Volume: 170, Issue: 3-4, Pages: 216-222
Abstract
The evolution of the excess conductivity in Y1−z Pr z Ba2Cu3O7−δ single crystals has been studied by systematically increasing the praseodymium concentration 005≤z≤05 The concentration dependence of the coherence length along c axis ξ c 0 on the praseodymium content has been determined The praseodymium concentration reduction from 00 to 05 results in a substantial broadening of the temperature interval where the excess conductivity takes place The ξ c 0 value increases more than fourfold and the 2D–3D crossover point is shifted in temperature
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