High flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3Oy superconductors at 77 K

研究成果: Article

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抄録

The optimisation of ternary (Nd-Eu-Gd)Ba2Cu3Oy (NEG) bulk quasi-crystals has been carried out to achieve high pinning at 77 K. For this purpose we prepared samples with various Nd:Eu:Gd ratios in the NEG compound. Our experimental results suggest that a suitable combination of the three elements on the rare earth site can enhance flux pinning at low, intermediate, and high magnetic fields. This is thus an effective tool for tailoring properties of this material according to requirements of the particular application. We show that the maximum flux pinning can be achieved in the whole magnetic field range (at 77 K) when very fine (sub-micron) secondary phase particles are dispersed in a superconducting 123 matrix with an optimum Nd:Eu:Gd ratio.

元の言語English
ページ(範囲)750-754
ページ数5
ジャーナルPhysica C: Superconductivity and its Applications
378-381
発行部数PART 1
DOI
出版物ステータスPublished - 2002 10 1
外部発表Yes

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Flux pinning
flux pinning
Superconducting materials
Magnetic fields
magnetic fields
Rare earths
rare earth elements
requirements
Crystals
optimization
matrices
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

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abstract = "The optimisation of ternary (Nd-Eu-Gd)Ba2Cu3Oy (NEG) bulk quasi-crystals has been carried out to achieve high pinning at 77 K. For this purpose we prepared samples with various Nd:Eu:Gd ratios in the NEG compound. Our experimental results suggest that a suitable combination of the three elements on the rare earth site can enhance flux pinning at low, intermediate, and high magnetic fields. This is thus an effective tool for tailoring properties of this material according to requirements of the particular application. We show that the maximum flux pinning can be achieved in the whole magnetic field range (at 77 K) when very fine (sub-micron) secondary phase particles are dispersed in a superconducting 123 matrix with an optimum Nd:Eu:Gd ratio.",
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AU - Miryala, Muralidhar

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AU - Sakai, Naomichi

AU - Murakami, Masato

PY - 2002/10/1

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AB - The optimisation of ternary (Nd-Eu-Gd)Ba2Cu3Oy (NEG) bulk quasi-crystals has been carried out to achieve high pinning at 77 K. For this purpose we prepared samples with various Nd:Eu:Gd ratios in the NEG compound. Our experimental results suggest that a suitable combination of the three elements on the rare earth site can enhance flux pinning at low, intermediate, and high magnetic fields. This is thus an effective tool for tailoring properties of this material according to requirements of the particular application. We show that the maximum flux pinning can be achieved in the whole magnetic field range (at 77 K) when very fine (sub-micron) secondary phase particles are dispersed in a superconducting 123 matrix with an optimum Nd:Eu:Gd ratio.

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