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

M. Muralidhar; M. R. Koblischka; M. Murakami

doi:10.1088/0953-2048/13/6/313

(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 journal › Conference article › peer-review

20 Citations (Scopus)

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)Ba₂Cu₃O_y (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, J_c, of 73000 A cm^-2 at 3 T for fields parallel to the c-axis at 77 K.

Original language	English
Pages (from-to)	693-697
Number of pages	5
Journal	Superconductor Science and Technology
Volume	13
Issue number	6
DOIs	https://doi.org/10.1088/0953-2048/13/6/313
Publication status	Published - 2000 Jun 1
Externally published	Yes
Event	The 2nd International Workshop on the Processing and Applications of Superconducting (RE)CBO Large Grain Materials - Morioka, Jpn Duration: 1999 Oct 19 → 1999 Oct 22

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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

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.",

author = "M. Muralidhar and Koblischka, {M. R.} and M. Murakami",

year = "2000",

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doi = "10.1088/0953-2048/13/6/313",

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journal = "Superconductor Science and Technology",

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T1 - (Nd, Eu, Gd)-Ba-Cu-O superconductors with combined addition of CeO2 and Pt

AU - Muralidhar, M.

AU - Koblischka, M. R.

AU - Murakami, M.

PY - 2000/6/1

Y1 - 2000/6/1

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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VL - 13

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JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

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T2 - The 2nd International Workshop on the Processing and Applications of Superconducting (RE)CBO Large Grain Materials

Y2 - 19 October 1999 through 22 October 1999

ER -

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

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