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

doi:10.1016/j.physc.2006.04.082

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

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

32 Citations (Scopus)

Abstract

By using top seeding melt-textured growth process, single domain bulk superconductor GdBa₂Cu₃O_7-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 (J_c) 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. J_c has a remarkable spacial distribution inside the samples while keeping T_c almost stable for all addition quantities.

Original language	English
Pages (from-to)	357-360
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	445-448
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physc.2006.04.082
Publication status	Published - 2006 Oct 1
Externally published	Yes

Keywords

Air processing
Gd-123
Nanosized particles
SnO
ZrO

ASJC Scopus subject areas

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

Access to Document

10.1016/j.physc.2006.04.082

Cite this

@article{a817407f59a44476a0eb0ec1c63fd61e,

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

abstract = "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.",

keywords = "Air processing, Gd-123, Nanosized particles, SnO, ZrO",

author = "Caixuan Xu and Anming Hu and Naomichi Sakai and Mitsuru Izumi and Izumi Hirabayashi",

note = "Funding Information: This work was partly supported by Sasakawa Scientific Research Grant from Japan Science Society. A.H. acknowledged the financial supports from the Alexander von Humboldt foundation, Germany and the Japanese Society for the Promotion of Science (JSPS), Japan.",

year = "2006",

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doi = "10.1016/j.physc.2006.04.082",

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T1 - Flux pinning properties and superconductivity of Gd-123 superconductor with addition of nanosized SnO2/ZrO2 particles

AU - Xu, Caixuan

AU - Hu, Anming

AU - Sakai, Naomichi

AU - Izumi, Mitsuru

AU - Hirabayashi, Izumi

N1 - Funding Information: This work was partly supported by Sasakawa Scientific Research Grant from Japan Science Society. A.H. acknowledged the financial supports from the Alexander von Humboldt foundation, Germany and the Japanese Society for the Promotion of Science (JSPS), Japan.

PY - 2006/10/1

Y1 - 2006/10/1

N2 - 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.

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.

KW - Air processing

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KW - Nanosized particles

KW - SnO

KW - ZrO

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