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

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

9 Citations (Scopus)

Abstract

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.

Original language	English
Article number	11260
Pages (from-to)	201-204
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	357-360
DOIs	https://doi.org/10.1016/S0921-4534(01)00205-2
Publication status	Published - 2001
Externally published	Yes

Keywords

Grain boundaries
KClO doping
MO imaging
YBCO HTSC

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/S0921-4534(01)00205-2

Cite this

@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",

language = "English",

volume = "357-360",

pages = "201--204",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

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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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JO - Physica C: Superconductivity and its Applications

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