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Ferretti, M.; Magnone, Edoardo

doi:10.1023/a:1020605700995

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“…That is, while the optimal calcination temperature was 980 • C for RE = Sm and Nd, it was determined to be 950 • C for RE = Y. In fact such a difference on calcination temperatures was expected from the reports in literature [26,27]. These studies have shown that crystallization temperatures of RE-123 compounds vary as a function of the rare earth.…”

Section: Resultsmentioning

confidence: 95%

The Role of Oxygenation on Superconducting Properties of RE3Ba5Cu8O18 (RE=Y, Sm and Nd) Compounds

Topal

Akdoğan

2011

J Supercond Nov Magn

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This study reports the effects of oxygenation on new high-T c cuprates having the structure of RE 3 Ba 5 Cu 8 O 18 (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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Section: Resultsmentioning

confidence: 95%