Abstract
This study reports the effects of oxygenation on new high-T c cuprates having the structure of RE3Ba5Cu8O18 (RE=Y, Sm and Nd) and T c (on) values of 96.5–97.5 K. The measurements have shown that excess oxygenation has no important contribution to the T c (on) values, but it improves T c (off) values significantly. From these three systems, RE = Nd is the most sensitive one to the oxygenation. Its T c (off) value increases by 13 K (from 78 K to 91.1 K) with post-annealing.
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Topal, U., Akdogan, M. The Role of Oxygenation on Superconducting Properties of RE3Ba5Cu8O18 (RE=Y, Sm and Nd) Compounds. J Supercond Nov Magn 25, 239–244 (2012). https://doi.org/10.1007/s10948-011-1285-3
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DOI: https://doi.org/10.1007/s10948-011-1285-3