Spatial variation of superconducting properties in a large grain of Y-Ba-Cu-O

S. Takebayashi; S. I. Yoo; M. Murakami

doi:10.1016/S0921-4534(02)01834-8

Spatial variation of superconducting properties in a large grain of Y-Ba-Cu-O

S. Takebayashi, S. I. Yoo, M. Murakami

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

3 Citations (Scopus)

Abstract

We report positional dependence of superconducting properties in a Y-Ba-Cu-O single grain fabricated with a top seeded melt growth technique. It is found that the distributions of the second phase of Y₂BaCuO₅ (Y211) inclusions and the magnetic properties vary with position in a large sample. The peak effect is observed in the region where the volume fraction of the Y211 particles is low. The optimum oxygen-annealing temperature for achieving high critical current is also dependent on the position in a large bulk. The regional distributions of the microstructure and the properties are not arbitrarily scattered but reasonably depend on the spatial distributions of growth rate and growth direction in a large grain.

Original language	English
Pages (from-to)	465-472
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	383
Issue number	4
DOIs	https://doi.org/10.1016/S0921-4534(02)01834-8
Publication status	Published - 2003 Jan 1
Externally published	Yes

Keywords

Melt textured
Oxygen annealing
Spatial variation
Y-Ba-Cu-O

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(02)01834-8

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title = "Spatial variation of superconducting properties in a large grain of Y-Ba-Cu-O",

abstract = "We report positional dependence of superconducting properties in a Y-Ba-Cu-O single grain fabricated with a top seeded melt growth technique. It is found that the distributions of the second phase of Y2BaCuO5 (Y211) inclusions and the magnetic properties vary with position in a large sample. The peak effect is observed in the region where the volume fraction of the Y211 particles is low. The optimum oxygen-annealing temperature for achieving high critical current is also dependent on the position in a large bulk. The regional distributions of the microstructure and the properties are not arbitrarily scattered but reasonably depend on the spatial distributions of growth rate and growth direction in a large grain.",

keywords = "Melt textured, Oxygen annealing, Spatial variation, Y-Ba-Cu-O",

author = "S. Takebayashi and Yoo, {S. I.} and M. Murakami",

note = "Funding Information: This work was partially supported by New Energy and Industrial Technology Development Organization for the R&D of Industrial Science and Technology Frontier Program. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.",

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T1 - Spatial variation of superconducting properties in a large grain of Y-Ba-Cu-O

AU - Takebayashi, S.

AU - Yoo, S. I.

AU - Murakami, M.

N1 - Funding Information: This work was partially supported by New Energy and Industrial Technology Development Organization for the R&D of Industrial Science and Technology Frontier Program. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.

PY - 2003/1/1

Y1 - 2003/1/1

N2 - We report positional dependence of superconducting properties in a Y-Ba-Cu-O single grain fabricated with a top seeded melt growth technique. It is found that the distributions of the second phase of Y2BaCuO5 (Y211) inclusions and the magnetic properties vary with position in a large sample. The peak effect is observed in the region where the volume fraction of the Y211 particles is low. The optimum oxygen-annealing temperature for achieving high critical current is also dependent on the position in a large bulk. The regional distributions of the microstructure and the properties are not arbitrarily scattered but reasonably depend on the spatial distributions of growth rate and growth direction in a large grain.

AB - We report positional dependence of superconducting properties in a Y-Ba-Cu-O single grain fabricated with a top seeded melt growth technique. It is found that the distributions of the second phase of Y2BaCuO5 (Y211) inclusions and the magnetic properties vary with position in a large sample. The peak effect is observed in the region where the volume fraction of the Y211 particles is low. The optimum oxygen-annealing temperature for achieving high critical current is also dependent on the position in a large bulk. The regional distributions of the microstructure and the properties are not arbitrarily scattered but reasonably depend on the spatial distributions of growth rate and growth direction in a large grain.

KW - Melt textured

KW - Oxygen annealing

KW - Spatial variation

KW - Y-Ba-Cu-O

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DO - 10.1016/S0921-4534(02)01834-8

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SN - 0921-4534

VL - 383

SP - 465

EP - 472

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 4

ER -

Spatial variation of superconducting properties in a large grain of Y-Ba-Cu-O

Abstract

Keywords

ASJC Scopus subject areas

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