Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)2Sr 2Ca2Cu3O10+δ tapes

M. R. Koblischka; T. H. Johansen; H. Bratsberg; L. Půst; A. Galkin; P. Nálevka; M. Maryško; M. Jirsa; M. Bentzon; P. Bodin; P. Vase; T. Freltoft

doi:10.1063/1.367865

Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)₂Sr ₂Ca₂Cu₃O_10+δ tapes

M. R. Koblischka, T. H. Johansen, H. Bratsberg, L. Půst, A. Galkin, P. Nálevka, M. Maryško, M. Jirsa, M. Bentzon, P. Bodin, P. Vase, T. Freltoft

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Abstract

Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)₂Sr ₂Ca₂Cu₃O_10+δ tapes comprising 19 filaments are visualized by means of magneto-optic imaging. In low fields, the shielding currents are seen to flow mainly in the outermost filaments. With increasing external magnetic field, the inner filaments also contribute to the current flow. To compare the local flux distribution with the integral magnetization values, magnetization loops are measured by a SQUID magnetometer on the same sample following the fields used in the magneto-optic imaging (±120 mT) and covering fields up to ±5 T at various temperatures. The magnetization loops also reveal that the multifilamentary tapes show the anomalous position of the central peak, but always less pronounced than in monofilamentary tapes.

Original language	English
Pages (from-to)	6798-6800
Number of pages	3
Journal	Journal of Applied Physics
Volume	83
Issue number	11
DOIs	https://doi.org/10.1063/1.367865
Publication status	Published - 1998 Jan 1

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ASJC Scopus subject areas

Physics and Astronomy(all)

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Koblischka, M. R., Johansen, T. H., Bratsberg, H., Půst, L., Galkin, A., Nálevka, P., Maryško, M., Jirsa, M., Bentzon, M., Bodin, P., Vase, P., & Freltoft, T. (1998). Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)₂Sr ₂Ca₂Cu₃O_10+δ tapes. Journal of Applied Physics, 83(11), 6798-6800. https://doi.org/10.1063/1.367865

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abstract = "Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)2Sr 2Ca2Cu3O10+δ tapes comprising 19 filaments are visualized by means of magneto-optic imaging. In low fields, the shielding currents are seen to flow mainly in the outermost filaments. With increasing external magnetic field, the inner filaments also contribute to the current flow. To compare the local flux distribution with the integral magnetization values, magnetization loops are measured by a SQUID magnetometer on the same sample following the fields used in the magneto-optic imaging (±120 mT) and covering fields up to ±5 T at various temperatures. The magnetization loops also reveal that the multifilamentary tapes show the anomalous position of the central peak, but always less pronounced than in monofilamentary tapes.",

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T1 - Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)2Sr 2Ca2Cu3O10+δ tapes

AU - Koblischka, M. R.

AU - Johansen, T. H.

AU - Bratsberg, H.

AU - Půst, L.

AU - Galkin, A.

AU - Nálevka, P.

AU - Maryško, M.

AU - Jirsa, M.

AU - Bentzon, M.

AU - Bodin, P.

AU - Vase, P.

AU - Freltoft, T.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)2Sr 2Ca2Cu3O10+δ tapes comprising 19 filaments are visualized by means of magneto-optic imaging. In low fields, the shielding currents are seen to flow mainly in the outermost filaments. With increasing external magnetic field, the inner filaments also contribute to the current flow. To compare the local flux distribution with the integral magnetization values, magnetization loops are measured by a SQUID magnetometer on the same sample following the fields used in the magneto-optic imaging (±120 mT) and covering fields up to ±5 T at various temperatures. The magnetization loops also reveal that the multifilamentary tapes show the anomalous position of the central peak, but always less pronounced than in monofilamentary tapes.

AB - Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)2Sr 2Ca2Cu3O10+δ tapes comprising 19 filaments are visualized by means of magneto-optic imaging. In low fields, the shielding currents are seen to flow mainly in the outermost filaments. With increasing external magnetic field, the inner filaments also contribute to the current flow. To compare the local flux distribution with the integral magnetization values, magnetization loops are measured by a SQUID magnetometer on the same sample following the fields used in the magneto-optic imaging (±120 mT) and covering fields up to ±5 T at various temperatures. The magnetization loops also reveal that the multifilamentary tapes show the anomalous position of the central peak, but always less pronounced than in monofilamentary tapes.

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