(Nd, Eu, Gd)-Ba-Cu-O superconductors with combined addition of CeO2 and Pt

M. Muralidhar, M. R. Koblischka, M. Murakami

Research output: Contribution to journalArticle

  • 17 Citations

Abstract

A combination of CeO2 and Pt doping has been performed for oxygen-controlled melt-growth processed (Nd, Eu, Gd)-Ba-Cu-O with the aim of refining the (Nd, Eu, Gd)2BaCuO5 particles, which were added to the (Nd, Eu, Gd)Ba2Cu3Oy (NEG-123) precursor. Observations using transmission electron microscopy demonstrate that sub-micrometre-sized 211 particles could be embedded successfully in the NEG-123 matrix. Energy dispersive x-ray analysis (EDX) confirmed that these sub-micrometre-sized 211 particles consisted mainly of Eu on the rare earth site for the samples containing 10 mol% (Nd, Eu, Gd)2BaCuO5. As a result, the (Nd, Eu, Gd)-Ba-Cu-O sample with a combined addition of CeO2 and Pt exhibits an enhanced fishtail effect with a critical current density, Jc, of 73000 A cm-2 at 3 T for fields parallel to the c-axis at 77 K.

LanguageEnglish
Pages693-697
Number of pages5
JournalSuperconductor Science and Technology
Volume13
Issue number6
DOIs
StatePublished - 2000 Jun
Externally publishedYes

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Superconducting materials
micrometers
Rare earths
Refining
x ray analysis
Doping (additives)
refining
Oxygen
Transmission electron microscopy
X rays
critical current
rare earth elements
current density
transmission electron microscopy
oxygen
matrices
energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

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(Nd, Eu, Gd)-Ba-Cu-O superconductors with combined addition of CeO2 and Pt. / Muralidhar, M.; Koblischka, M. R.; Murakami, M.

In: Superconductor Science and Technology, Vol. 13, No. 6, 06.2000, p. 693-697.

Research output: Contribution to journalArticle

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abstract = "A combination of CeO2 and Pt doping has been performed for oxygen-controlled melt-growth processed (Nd, Eu, Gd)-Ba-Cu-O with the aim of refining the (Nd, Eu, Gd)2BaCuO5 particles, which were added to the (Nd, Eu, Gd)Ba2Cu3Oy (NEG-123) precursor. Observations using transmission electron microscopy demonstrate that sub-micrometre-sized 211 particles could be embedded successfully in the NEG-123 matrix. Energy dispersive x-ray analysis (EDX) confirmed that these sub-micrometre-sized 211 particles consisted mainly of Eu on the rare earth site for the samples containing 10 mol{\%} (Nd, Eu, Gd)2BaCuO5. As a result, the (Nd, Eu, Gd)-Ba-Cu-O sample with a combined addition of CeO2 and Pt exhibits an enhanced fishtail effect with a critical current density, Jc, of 73000 A cm-2 at 3 T for fields parallel to the c-axis at 77 K.",
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N2 - A combination of CeO2 and Pt doping has been performed for oxygen-controlled melt-growth processed (Nd, Eu, Gd)-Ba-Cu-O with the aim of refining the (Nd, Eu, Gd)2BaCuO5 particles, which were added to the (Nd, Eu, Gd)Ba2Cu3Oy (NEG-123) precursor. Observations using transmission electron microscopy demonstrate that sub-micrometre-sized 211 particles could be embedded successfully in the NEG-123 matrix. Energy dispersive x-ray analysis (EDX) confirmed that these sub-micrometre-sized 211 particles consisted mainly of Eu on the rare earth site for the samples containing 10 mol% (Nd, Eu, Gd)2BaCuO5. As a result, the (Nd, Eu, Gd)-Ba-Cu-O sample with a combined addition of CeO2 and Pt exhibits an enhanced fishtail effect with a critical current density, Jc, of 73000 A cm-2 at 3 T for fields parallel to the c-axis at 77 K.

AB - A combination of CeO2 and Pt doping has been performed for oxygen-controlled melt-growth processed (Nd, Eu, Gd)-Ba-Cu-O with the aim of refining the (Nd, Eu, Gd)2BaCuO5 particles, which were added to the (Nd, Eu, Gd)Ba2Cu3Oy (NEG-123) precursor. Observations using transmission electron microscopy demonstrate that sub-micrometre-sized 211 particles could be embedded successfully in the NEG-123 matrix. Energy dispersive x-ray analysis (EDX) confirmed that these sub-micrometre-sized 211 particles consisted mainly of Eu on the rare earth site for the samples containing 10 mol% (Nd, Eu, Gd)2BaCuO5. As a result, the (Nd, Eu, Gd)-Ba-Cu-O sample with a combined addition of CeO2 and Pt exhibits an enhanced fishtail effect with a critical current density, Jc, of 73000 A cm-2 at 3 T for fields parallel to the c-axis at 77 K.

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