Anomalous behaviors in resistivity and magnetization of reduction-treated multi phase ceramics of Pr124/Pr123 and inhomogeneous Pr247 |
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| Authors: | M. Hagiwara T. Shima S. Tanaka K. Koyama |
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| Affiliation: | 1. Faculty of Engineering and Design, Kyoto Institute of Technology, Kyoto, Japan;2. Advanced Technology Center, Kyoto Institute of Technology, Kyoto, Japan;3. Faculty of Integrated Arts and Sciences, The University of Tokushima, Tokushima, Japan |
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| Abstract: | A superconductive sign found in electric resistivity behavior of mixed ceramic Pr124/Pr123 is searched and discussed, to advance preceding discussion about the superconductive region induced by intergrain charge transfer effect in ceramic Pr247 containing the related impurity phases. Observed reduction effects for largely impure ceramic of Pr247 with Pr124 and Pr123 and for simply dual-phase sample of Pr124/Pr123 inform us that the oxygen-reduction brings not only superconductive electron doping but also normal resistivity enhancement. Milder heat treatment condition is expected to assist possible attainment of zero-resistivity for Pr124/Pr123. |
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