Paper Title:
Synthesis and Characterization of Ruteno-Cuprates by Solid State Reactions
  Abstract

A new class of hybrid ruteno-cuprates – such as Ru-1212 and Ru-1222 – was discovered in 1995 by Bauerfeind and collaborators. These materials present superconducting and magnetic states at low temperatures, an atypical duality in other superconductors. The superconductivity is more easily observed in Ru-1222, while Ru-1212 is a more problematic case, due to the strong effects of the preparation details in its superconducting properties, becoming the material superconductor or not. Ru-1212 presents a critical temperature that can vary between 0 and 46 K, depending on the preparation conditions, and a temperature of magnetic transition of around 132 K. The samples were prepared through solid state reactions, by using a mixture of high purity powders, followed by calcination and sinterization in the nitrogen and oxygen atmospheres. This paper shows the preparation process of Ru-1212 samples, followed by their structural and magnetic characterization.

  Info
Periodical
Materials Science Forum (Volumes 591-593)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
644-648
DOI
10.4028/www.scientific.net/MSF.591-593.644
Citation
J.M.A. Gimenez, C. R. Grandini, A.R. Jurelo, "Synthesis and Characterization of Ruteno-Cuprates by Solid State Reactions", Materials Science Forum, Vols. 591-593, pp. 644-648, 2008
Online since
August 2008
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Price
$32.00
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