Single-grain growth, microstructure and superconducting properties of (Sm,Eu)123 superconductors with BaCuO2-x addition

A. Hu; N. Sakai; H. Zhou; M. Matsui; M. Murakami

doi:10.1088/0953-2048/16/1/307

Single-grain growth, microstructure and superconducting properties of (Sm,Eu)123 superconductors with BaCuO_2-x addition

A. Hu, N. Sakai, H. Zhou, M. Matsui, M. Murakami

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

24 Citations (Scopus)

Abstract

High quality (Sm_0.5, Eu_0.5)Ba₂Cu₃O_7-δ single domains were grown in air with BaCuO_2-x addition. It was found that a RE-Ba substitution (RE: Sm and Eu) could be effectively suppressed by a small addition of BaCuO_2-x. The 94 K superconductivity with sharp transition was obtained in the composition range of 0.16 ∼ 0.33 BaCuO_2-x and (Sm_0.5, Eu_0.5)Ba₂Cu₃O_7-δ in a molar ratio. At 77 K, a surface field of 0.8 T was trapped in a single-domain pellet of 3.2 cm diameter. A further addition of BaCuO_2-x deteriorated the microstructure and degraded the superconducting performance.

Original language	English
Pages (from-to)	33-38
Number of pages	6
Journal	Superconductor Science and Technology
Volume	16
Issue number	1
DOIs	https://doi.org/10.1088/0953-2048/16/1/307
Publication status	Published - 2003 Jan 1
Externally published	Yes

ASJC Scopus subject areas

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

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abstract = "High quality (Sm0.5, Eu0.5)Ba2Cu3O7-δ single domains were grown in air with BaCuO2-x addition. It was found that a RE-Ba substitution (RE: Sm and Eu) could be effectively suppressed by a small addition of BaCuO2-x. The 94 K superconductivity with sharp transition was obtained in the composition range of 0.16 ∼ 0.33 BaCuO2-x and (Sm0.5, Eu0.5)Ba2Cu3O7-δ in a molar ratio. At 77 K, a surface field of 0.8 T was trapped in a single-domain pellet of 3.2 cm diameter. A further addition of BaCuO2-x deteriorated the microstructure and degraded the superconducting performance.",

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T1 - Single-grain growth, microstructure and superconducting properties of (Sm,Eu)123 superconductors with BaCuO2-x addition

AU - Hu, A.

AU - Sakai, N.

AU - Zhou, H.

AU - Matsui, M.

AU - Murakami, M.

PY - 2003/1/1

Y1 - 2003/1/1

N2 - High quality (Sm0.5, Eu0.5)Ba2Cu3O7-δ single domains were grown in air with BaCuO2-x addition. It was found that a RE-Ba substitution (RE: Sm and Eu) could be effectively suppressed by a small addition of BaCuO2-x. The 94 K superconductivity with sharp transition was obtained in the composition range of 0.16 ∼ 0.33 BaCuO2-x and (Sm0.5, Eu0.5)Ba2Cu3O7-δ in a molar ratio. At 77 K, a surface field of 0.8 T was trapped in a single-domain pellet of 3.2 cm diameter. A further addition of BaCuO2-x deteriorated the microstructure and degraded the superconducting performance.

AB - High quality (Sm0.5, Eu0.5)Ba2Cu3O7-δ single domains were grown in air with BaCuO2-x addition. It was found that a RE-Ba substitution (RE: Sm and Eu) could be effectively suppressed by a small addition of BaCuO2-x. The 94 K superconductivity with sharp transition was obtained in the composition range of 0.16 ∼ 0.33 BaCuO2-x and (Sm0.5, Eu0.5)Ba2Cu3O7-δ in a molar ratio. At 77 K, a surface field of 0.8 T was trapped in a single-domain pellet of 3.2 cm diameter. A further addition of BaCuO2-x deteriorated the microstructure and degraded the superconducting performance.

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Single-grain growth, microstructure and superconducting properties of (Sm,Eu)123 superconductors with BaCuO_2-x addition

Abstract

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