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2008 | 113 | 1 | 219-222
Article title

Effects of Europium-Barium Nonstoichiometry in EBCO123 Systems on Transition and Magnetization Properties

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EN
Abstracts
EN
We studied the effects of Eu-Ba nonstoichiometry in two series of Eu_{1+x}Ba_{2-x}Cu_3O_{7-δ} and Eu_{1-x}Ba_{2+x}Cu_3O_{7-δ} samples on transition, structural, and magnetic properties. The samples with the nominal composition of 0≤x≤0.07 were synthesized by the solid-state reaction method from Eu_2O_3, BaCO_3, and CuO precursors and sintered at 1050°C for 72 h in flowing oxygen. All the samples show the values of critical temperature T_c, volume density ρ, and maximum volume magnetization M_{max} higher than 90 K, 6.3 g cm^{-3} and 10^4 Am^{-1}, respectively, except for x = 0.07 samples. The Eu-Ba nonstoichiometry in the two series shows different effects on transport, magnetization hystereses, and intergrain properties of the samples.
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Contributors
author
  • Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
author
  • Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
author
  • Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
author
  • Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
author
  • Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
  • Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
References
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  • 2. D.A. Cardwell, N.H. Babu, Y. Shi, K. Iida, Supercond. Sci. Technol 19, S510 (2006)
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  • 4. M. Murakami, N. Sakai, T. Higuchi, S.I. Yoo, Supercond. Sci. Technol 9, S510 (1996)
  • 5. A. Gupta, V.P.S. Awana, S.B. Samanta, H. Kisham, A.V.Narlikar, in: Frontiers in Superconducting Materials, Ed. A.V. Narlikar, Springer, Berlin 2005, p. 49 9
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1053kz
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