Evidence for pinning by (Sr,Ca) 2CuOy particles in partial-melting processed bulk Bi2Sr2CaCu2O8+δ ceramics

M. R. Koblischka; S. L. Huang; K. Fossheim; T. H. Johansen; H. Bratsberg

doi:10.1016/S0921-4534(98)00105-1

Evidence for pinning by (Sr,Ca) ₂CuO_y particles in partial-melting processed bulk Bi₂Sr₂CaCu₂O_8+δ ceramics

M. R. Koblischka, S. L. Huang, K. Fossheim, T. H. Johansen, H. Bratsberg

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

14 Citations (Scopus)

Abstract

Flux distributions of partial-melting processed Bi₂Sr₂CaCu₂O_8+δ ceramics are obtained using magneto-optic imaging. In remanent states (μ₀H_a = 0 T), large amounts of trapped flux are observed along (Sr,Ca)₂CuO_y particles embedded in the Bi₂Sr₂CaCu₂O_8+δ matrix. Despite the relatively large size of these particles (up to 30 μm), the pinning effect is similar to that of Y₂BaCuO₅ particles in melt-processed YBa₂Cu₃O_7-δ. Furthermore, we discuss how the pinning capability of non-superconducting particles of different sizes and densities will show up in magneto-optic images.

Original language	English
Pages (from-to)	207-211
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	300
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(98)00105-1
Publication status	Published - 1998
Externally published	Yes

Keywords

(Sr,Ca)CuO particles
Ceramics
Pinning properties

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(98)00105-1

Cite this

@article{7c926ca810d54841a7a599ae01db35e8,

title = "Evidence for pinning by (Sr,Ca) 2CuOy particles in partial-melting processed bulk Bi2Sr2CaCu2O8+δ ceramics",

abstract = "Flux distributions of partial-melting processed Bi2Sr2CaCu2O8+δ ceramics are obtained using magneto-optic imaging. In remanent states (μ0Ha = 0 T), large amounts of trapped flux are observed along (Sr,Ca)2CuOy particles embedded in the Bi2Sr2CaCu2O8+δ matrix. Despite the relatively large size of these particles (up to 30 μm), the pinning effect is similar to that of Y2BaCuO5 particles in melt-processed YBa2Cu3O7-δ. Furthermore, we discuss how the pinning capability of non-superconducting particles of different sizes and densities will show up in magneto-optic images.",

keywords = "(Sr,Ca)CuO particles, Ceramics, Pinning properties",

author = "Koblischka, {M. R.} and Huang, {S. L.} and K. Fossheim and Johansen, {T. H.} and H. Bratsberg",

note = "Funding Information: We would like to thank S. J{\o}rgensen for the SEM investigations. This work is financially supported by The Research Council of Norway.",

year = "1998",

doi = "10.1016/S0921-4534(98)00105-1",

language = "English",

volume = "300",

pages = "207--211",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Evidence for pinning by (Sr,Ca) 2CuOy particles in partial-melting processed bulk Bi2Sr2CaCu2O8+δ ceramics

AU - Koblischka, M. R.

AU - Huang, S. L.

AU - Fossheim, K.

AU - Johansen, T. H.

AU - Bratsberg, H.

N1 - Funding Information: We would like to thank S. Jørgensen for the SEM investigations. This work is financially supported by The Research Council of Norway.

PY - 1998

Y1 - 1998

N2 - Flux distributions of partial-melting processed Bi2Sr2CaCu2O8+δ ceramics are obtained using magneto-optic imaging. In remanent states (μ0Ha = 0 T), large amounts of trapped flux are observed along (Sr,Ca)2CuOy particles embedded in the Bi2Sr2CaCu2O8+δ matrix. Despite the relatively large size of these particles (up to 30 μm), the pinning effect is similar to that of Y2BaCuO5 particles in melt-processed YBa2Cu3O7-δ. Furthermore, we discuss how the pinning capability of non-superconducting particles of different sizes and densities will show up in magneto-optic images.

AB - Flux distributions of partial-melting processed Bi2Sr2CaCu2O8+δ ceramics are obtained using magneto-optic imaging. In remanent states (μ0Ha = 0 T), large amounts of trapped flux are observed along (Sr,Ca)2CuOy particles embedded in the Bi2Sr2CaCu2O8+δ matrix. Despite the relatively large size of these particles (up to 30 μm), the pinning effect is similar to that of Y2BaCuO5 particles in melt-processed YBa2Cu3O7-δ. Furthermore, we discuss how the pinning capability of non-superconducting particles of different sizes and densities will show up in magneto-optic images.

KW - (Sr,Ca)CuO particles

KW - Ceramics

KW - Pinning properties

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U2 - 10.1016/S0921-4534(98)00105-1

DO - 10.1016/S0921-4534(98)00105-1

M3 - Article

AN - SCOPUS:0032069158

VL - 300

SP - 207

EP - 211

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 3-4

ER -