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Journal of Superconductivity and Novel Magnetism

, Volume 25, Issue 2, pp 239–244 | Cite as

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

  • Ugur Topal
  • Mustafa Akdogan
Original Paper

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.

Keywords

High-temperature superconductors Electrical properties Superconductivity Ceramic superconductors 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.TUBITAK-UME (National Metrology Institute)Gebze-KocaeliTurkey
  2. 2.Department of PhysicsAbant Izzet Baysal UniversityBoluTurkey

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