Magneto-optical and microstructural investigations on KClO3-doped YBCO HTSC

Anjela Koblischka-Veneva; Michael R. Koblischka; Masato Murakami

doi:10.1016/S0921-4534(01)00205-2

Magneto-optical and microstructural investigations on KClO₃-doped YBCO HTSC

Anjela Koblischka-Veneva, Michael R. Koblischka, Masato Murakami

研究成果: Article › 査読

9 被引用数 (Scopus)

抄録

The influence of KClO₃ addition on the magnetic properties and microstructure of YBCO HTSC materials with nominal composition (A): Y₁Ba_2-xK_xCu₃O_y, (B): Y_1-0.2xBa_2-0.2xK_xCu₃ O_y, (C): Y₁Ba₂Cu_3.5-xK_xO_y (x = 0-0.75) were investigated. Magneto-optic imaging of flux distributions was employed to study the grain connectivity in the doped and undoped samples in a direct way. The obtained flux patterns taken at various temperatures reveal that KClO₃-doped samples (x = 0.30) exhibit flux distributions being close to those being observed in melt-textured superconductors. This demonstrates that the grain connectivity in the doped samples is considerably improved as compared to pure ones, which is an important issue for the fabrication of coated conductors of YBCO.

本文言語	English
論文番号	11260
ページ（範囲）	201-204
ページ数	4
ジャーナル	Physica C: Superconductivity and its applications
巻	357-360
DOI	https://doi.org/10.1016/S0921-4534(01)00205-2
出版ステータス	Published - 2001
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/S0921-4534(01)00205-2

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引用スタイル

@article{c7c9a651863141759c75441046a0b1a5,

title = "Magneto-optical and microstructural investigations on KClO3-doped YBCO HTSC",

abstract = "The influence of KClO3 addition on the magnetic properties and microstructure of YBCO HTSC materials with nominal composition (A): Y1Ba2-xKxCu3Oy, (B): Y1-0.2xBa2-0.2xKxCu3 Oy, (C): Y1Ba2Cu3.5-xKxOy (x = 0-0.75) were investigated. Magneto-optic imaging of flux distributions was employed to study the grain connectivity in the doped and undoped samples in a direct way. The obtained flux patterns taken at various temperatures reveal that KClO3-doped samples (x = 0.30) exhibit flux distributions being close to those being observed in melt-textured superconductors. This demonstrates that the grain connectivity in the doped samples is considerably improved as compared to pure ones, which is an important issue for the fabrication of coated conductors of YBCO.",

keywords = "Grain boundaries, KClO doping, MO imaging, YBCO HTSC",

author = "Anjela Koblischka-Veneva and Koblischka, {Michael R.} and Masato Murakami",

note = "Funding Information: This work is partially supported by NEDO. AV and MRK gratefully acknowledge support from STA (Japanese Science and Technology Agency) during the stay at SRL/ISTEC. ",

year = "2001",

doi = "10.1016/S0921-4534(01)00205-2",

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T1 - Magneto-optical and microstructural investigations on KClO3-doped YBCO HTSC

AU - Koblischka-Veneva, Anjela

AU - Koblischka, Michael R.

AU - Murakami, Masato

N1 - Funding Information: This work is partially supported by NEDO. AV and MRK gratefully acknowledge support from STA (Japanese Science and Technology Agency) during the stay at SRL/ISTEC.

PY - 2001

Y1 - 2001

N2 - The influence of KClO3 addition on the magnetic properties and microstructure of YBCO HTSC materials with nominal composition (A): Y1Ba2-xKxCu3Oy, (B): Y1-0.2xBa2-0.2xKxCu3 Oy, (C): Y1Ba2Cu3.5-xKxOy (x = 0-0.75) were investigated. Magneto-optic imaging of flux distributions was employed to study the grain connectivity in the doped and undoped samples in a direct way. The obtained flux patterns taken at various temperatures reveal that KClO3-doped samples (x = 0.30) exhibit flux distributions being close to those being observed in melt-textured superconductors. This demonstrates that the grain connectivity in the doped samples is considerably improved as compared to pure ones, which is an important issue for the fabrication of coated conductors of YBCO.

AB - The influence of KClO3 addition on the magnetic properties and microstructure of YBCO HTSC materials with nominal composition (A): Y1Ba2-xKxCu3Oy, (B): Y1-0.2xBa2-0.2xKxCu3 Oy, (C): Y1Ba2Cu3.5-xKxOy (x = 0-0.75) were investigated. Magneto-optic imaging of flux distributions was employed to study the grain connectivity in the doped and undoped samples in a direct way. The obtained flux patterns taken at various temperatures reveal that KClO3-doped samples (x = 0.30) exhibit flux distributions being close to those being observed in melt-textured superconductors. This demonstrates that the grain connectivity in the doped samples is considerably improved as compared to pure ones, which is an important issue for the fabrication of coated conductors of YBCO.

KW - Grain boundaries

KW - KClO doping

KW - MO imaging

KW - YBCO HTSC

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