Flux pinning properties in Y2BaCuO5-doped YBa2Cu3Oy films fabricated with vapor-liquid-solid growth method

Yuji Tsuchiya; Shuya Tajiri; Yusuke Ichino; Ataru Ichinose; Yutaka Yoshida

doi:10.2320/jinstmet.JA201905

Flux pinning properties in Y₂BaCuO₅-doped YBa₂Cu₃O_y films fabricated with vapor-liquid-solid growth method

Yuji Tsuchiya, Shuya Tajiri, Yusuke Ichino, Ataru Ichinose, Yutaka Yoshida

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

2 Citations (Scopus)

Abstract

High-temperature superconducting REBa₂Cu₃O_y (RE: Rare earth elements, REBCO) films need both a high-speed film fabrication with a well-oriented crystalline texture and an introduction of artificial pinning centers (APCs) to improve critical current densities J_cs in magnetic fields. A vapor-liquid-solid (VLS) growth method enables the REBCO films to grow rapidly with a high quality but makes it difficult to introduce the APCs. In this study, Y₂BaCuO₅ (Y₂11) was doped into YBa₂Cu₃O_y (Y123) films fabricated via the VLS method with a liquid layer of Ba₃Cu₇O₁₀. A microstructure analysis revealed that nano-particle APCs with diameter less than 10 nm were successfully introduced into the YBCO films. The Y₂11-doped Y123 films show the highest critical temperature T_c and the J_c in magnetic fields with a chemical composition ratio close to the stoichiometry of Y123.

Original language	English
Pages (from-to)	335-340
Number of pages	6
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	83
Issue number	9
DOIs	https://doi.org/10.2320/jinstmet.JA201905
Publication status	Published - 2019
Externally published	Yes

Keywords

Critical current density
Flux pinning
High temperature superconductors
Nano particle
Pulsed laser deposition method
Vapor-liquid-solid growth technique

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

Access to Document

10.2320/jinstmet.JA201905

Cite this

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title = "Flux pinning properties in Y2BaCuO5-doped YBa2Cu3Oy films fabricated with vapor-liquid-solid growth method",

abstract = "High-temperature superconducting REBa2Cu3Oy (RE: Rare earth elements, REBCO) films need both a high-speed film fabrication with a well-oriented crystalline texture and an introduction of artificial pinning centers (APCs) to improve critical current densities Jcs in magnetic fields. A vapor-liquid-solid (VLS) growth method enables the REBCO films to grow rapidly with a high quality but makes it difficult to introduce the APCs. In this study, Y2BaCuO5 (Y211) was doped into YBa2Cu3Oy (Y123) films fabricated via the VLS method with a liquid layer of Ba3Cu7O10. A microstructure analysis revealed that nano-particle APCs with diameter less than 10 nm were successfully introduced into the YBCO films. The Y211-doped Y123 films show the highest critical temperature Tc and the Jc in magnetic fields with a chemical composition ratio close to the stoichiometry of Y123.",

keywords = "Critical current density, Flux pinning, High temperature superconductors, Nano particle, Pulsed laser deposition method, Vapor-liquid-solid growth technique",

author = "Yuji Tsuchiya and Shuya Tajiri and Yusuke Ichino and Ataru Ichinose and Yutaka Yoshida",

note = "Publisher Copyright: {\textcopyright} 2019 The Japan Institute of Metals and Materials.",

year = "2019",

doi = "10.2320/jinstmet.JA201905",

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T1 - Flux pinning properties in Y2BaCuO5-doped YBa2Cu3Oy films fabricated with vapor-liquid-solid growth method

AU - Tsuchiya, Yuji

AU - Tajiri, Shuya

AU - Ichino, Yusuke

AU - Ichinose, Ataru

AU - Yoshida, Yutaka

PY - 2019

Y1 - 2019

N2 - High-temperature superconducting REBa2Cu3Oy (RE: Rare earth elements, REBCO) films need both a high-speed film fabrication with a well-oriented crystalline texture and an introduction of artificial pinning centers (APCs) to improve critical current densities Jcs in magnetic fields. A vapor-liquid-solid (VLS) growth method enables the REBCO films to grow rapidly with a high quality but makes it difficult to introduce the APCs. In this study, Y2BaCuO5 (Y211) was doped into YBa2Cu3Oy (Y123) films fabricated via the VLS method with a liquid layer of Ba3Cu7O10. A microstructure analysis revealed that nano-particle APCs with diameter less than 10 nm were successfully introduced into the YBCO films. The Y211-doped Y123 films show the highest critical temperature Tc and the Jc in magnetic fields with a chemical composition ratio close to the stoichiometry of Y123.

AB - High-temperature superconducting REBa2Cu3Oy (RE: Rare earth elements, REBCO) films need both a high-speed film fabrication with a well-oriented crystalline texture and an introduction of artificial pinning centers (APCs) to improve critical current densities Jcs in magnetic fields. A vapor-liquid-solid (VLS) growth method enables the REBCO films to grow rapidly with a high quality but makes it difficult to introduce the APCs. In this study, Y2BaCuO5 (Y211) was doped into YBa2Cu3Oy (Y123) films fabricated via the VLS method with a liquid layer of Ba3Cu7O10. A microstructure analysis revealed that nano-particle APCs with diameter less than 10 nm were successfully introduced into the YBCO films. The Y211-doped Y123 films show the highest critical temperature Tc and the Jc in magnetic fields with a chemical composition ratio close to the stoichiometry of Y123.

KW - Critical current density

KW - Flux pinning

KW - High temperature superconductors

KW - Nano particle

KW - Pulsed laser deposition method

KW - Vapor-liquid-solid growth technique

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