Anomalous magnetization behaviour in fine filamentary NbTi superconducting wires

Author

Polak, M. ; Krempasky, L. ; Majoros, M. ; Suchon, D. ; Kirchmayr, H.

Author_Institution

Inst. of Electr. Eng., Slovak Acad. of Sci., Bratislava, Czechoslovakia

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

150

Lastpage

152

Abstract

Magnetization curves of various fine filamentary superconducting wires with Cu as well as a CuNi matrix have been measured. Anomalies in the shape of these curves in a low external magnetic field were observed. A strong influence of both filament diameter and matrix type on the field above which the initial magnetization curve deviates from the straight line was detected. A considerable influence of the current flowing through the sample on the magnetization was observed as well. A model based on the proximity effect is proposed for the explanation of the magnetization anomalies.<>

Keywords

composite superconductors; losses; magnetisation; niobium alloys; proximity effect; titanium alloys; type II superconductors; Cu; Cu-NiTi; CuNi; CuNi-NiTi; NbTi superconducting wires; filament diameter; fine filamentary superconducting wires; magnetization anomalies; magnetization curve; matrix type; model; proximity effect; Circuit testing; Coils; Current measurement; Hall effect devices; Length measurement; Magnetic field measurement; Magnetization; Niobium compounds; Superconducting filaments and wires; Titanium compounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233692

Filename

233692