Flux pinning properties and superconductivity of Gd-123 superconductor with addition of nanosized SnO2/ZrO2 particles

Caixuan Xu, Anming Hu, Naomichi Sakai, Mitsuru Izumi, Izumi Hirabayashi

研究成果: Article

28 引用 (Scopus)

抄録

By using top seeding melt-textured growth process, single domain bulk superconductor GdBa2Cu3O7-δ (Gd-123) was prepared in air with variable additions of nanosized SnO2 and ZrO2 powders. The inhomogeneous distribution of Gd2BaCuO5 particles was observed by scanning electron microscope study for each bulk with nanoparticles addition. A band structure composed by second phase free band, narrow second phase rich band and second phase diluted band was observed along both a-b plane and c growth sectors in the vicinity of seed site. At 77 K high critical current (Jc) was increased up to 99,300 A cm-2 under self-field in H∥c-axis configuration in Gd-123 bulk with 0.004 ZrO2 addition, molar ratio to Gd-123. Jc has a remarkable spacial distribution inside the samples while keeping Tc almost stable for all addition quantities.

元の言語English
ページ(範囲)357-360
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
445-448
発行部数1-2
DOI
出版物ステータスPublished - 2006 10 1
外部発表Yes

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Flux pinning
flux pinning
Superconductivity
Superconducting materials
superconductivity
Critical currents
Band structure
Powders
Seed
Electron microscopes
Nanoparticles
Scanning
inoculation
Air
seeds
critical current
sectors
electron microscopes
nanoparticles
scanning

ASJC Scopus subject areas

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

これを引用

Flux pinning properties and superconductivity of Gd-123 superconductor with addition of nanosized SnO2/ZrO2 particles. / Xu, Caixuan; Hu, Anming; Sakai, Naomichi; Izumi, Mitsuru; Hirabayashi, Izumi.

:: Physica C: Superconductivity and its applications, 巻 445-448, 番号 1-2, 01.10.2006, p. 357-360.

研究成果: Article

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AU - Izumi, Mitsuru

AU - Hirabayashi, Izumi

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AB - By using top seeding melt-textured growth process, single domain bulk superconductor GdBa2Cu3O7-δ (Gd-123) was prepared in air with variable additions of nanosized SnO2 and ZrO2 powders. The inhomogeneous distribution of Gd2BaCuO5 particles was observed by scanning electron microscope study for each bulk with nanoparticles addition. A band structure composed by second phase free band, narrow second phase rich band and second phase diluted band was observed along both a-b plane and c growth sectors in the vicinity of seed site. At 77 K high critical current (Jc) was increased up to 99,300 A cm-2 under self-field in H∥c-axis configuration in Gd-123 bulk with 0.004 ZrO2 addition, molar ratio to Gd-123. Jc has a remarkable spacial distribution inside the samples while keeping Tc almost stable for all addition quantities.

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