Submicron size Gd2BaCuO5 particles as source for large critical current densities in (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy

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

doi:10.1051/epjap:1999203

Submicron size Gd₂BaCuO₅ particles as source for large critical current densities in (Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu₃O_y

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

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The effect of (Nd_0.33Eu_0.33Gd_0.33)₂BaCuO₅ (NEG-211), and Gd₂BaCuO₅ (Gd-211) additions on melt-processed (Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu₃O_y (NEG-123) composites are investigated using a combination of transmission electron microscopy (TEM) and measurements of critical current densities, J_c. TEM observations demonstrate that we could successfully embed submicron-size 211 particles within the NEG-123 matrix. EDX analysis revealed that these submicron-size particles consist mainly of Gd in the rare earth site. The presence of such 211 particles leads to a dramatic increase of J_c in low fields as well as in the high field region. For NEG-123 with an addition of 40 mol% of NEG-211 a critical current density of 70 000 A/cm² at 77 K, 2.2 T is observed for the field applied parallel to the c axis.

Original language	English
Pages (from-to)	99-102
Number of pages	4
Journal	EPJ Applied Physics
Volume	7
Issue number	2
DOIs	https://doi.org/10.1051/epjap:1999203
Publication status	Published - 1999 Aug
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics

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10.1051/epjap:1999203

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title = "Submicron size Gd2BaCuO5 particles as source for large critical current densities in (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy",

abstract = "The effect of (Nd0.33Eu0.33Gd0.33)2BaCuO5 (NEG-211), and Gd2BaCuO5 (Gd-211) additions on melt-processed (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) composites are investigated using a combination of transmission electron microscopy (TEM) and measurements of critical current densities, Jc. TEM observations demonstrate that we could successfully embed submicron-size 211 particles within the NEG-123 matrix. EDX analysis revealed that these submicron-size particles consist mainly of Gd in the rare earth site. The presence of such 211 particles leads to a dramatic increase of Jc in low fields as well as in the high field region. For NEG-123 with an addition of 40 mol% of NEG-211 a critical current density of 70 000 A/cm2 at 77 K, 2.2 T is observed for the field applied parallel to the c axis.",

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

year = "1999",

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doi = "10.1051/epjap:1999203",

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T1 - Submicron size Gd2BaCuO5 particles as source for large critical current densities in (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy

AU - Muralidhar, M.

AU - Koblischka, M. R.

AU - Murakami, M.

PY - 1999/8

Y1 - 1999/8

N2 - The effect of (Nd0.33Eu0.33Gd0.33)2BaCuO5 (NEG-211), and Gd2BaCuO5 (Gd-211) additions on melt-processed (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) composites are investigated using a combination of transmission electron microscopy (TEM) and measurements of critical current densities, Jc. TEM observations demonstrate that we could successfully embed submicron-size 211 particles within the NEG-123 matrix. EDX analysis revealed that these submicron-size particles consist mainly of Gd in the rare earth site. The presence of such 211 particles leads to a dramatic increase of Jc in low fields as well as in the high field region. For NEG-123 with an addition of 40 mol% of NEG-211 a critical current density of 70 000 A/cm2 at 77 K, 2.2 T is observed for the field applied parallel to the c axis.

AB - The effect of (Nd0.33Eu0.33Gd0.33)2BaCuO5 (NEG-211), and Gd2BaCuO5 (Gd-211) additions on melt-processed (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) composites are investigated using a combination of transmission electron microscopy (TEM) and measurements of critical current densities, Jc. TEM observations demonstrate that we could successfully embed submicron-size 211 particles within the NEG-123 matrix. EDX analysis revealed that these submicron-size particles consist mainly of Gd in the rare earth site. The presence of such 211 particles leads to a dramatic increase of Jc in low fields as well as in the high field region. For NEG-123 with an addition of 40 mol% of NEG-211 a critical current density of 70 000 A/cm2 at 77 K, 2.2 T is observed for the field applied parallel to the c axis.

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