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Critical current measurements at electric fields in the pV m(-1) regime

Abstract:
We describe a technique for characterising sample lengths of commercial superconducting wire in closed loop configuration. This enables the measurement of critical current, as a function of applied magnetic field, at electric field criteria in the range 10(6) to 1 pV m(-1) by detecting the decay of current in the closed loop. How these measurements relate to the more traditional 4 terminal measurements made on short sample coils is discussed and representative data from both NbTi and Nb3Sn samples are presented and analysed.
Publication status:
Published

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Publisher copy:
10.1109/77.620846

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Killoran, N More by this author
Volume:
7
Issue:
2
Pages:
1455-1458
Publication date:
1997-06-05
DOI:
ISSN:
1051-8223
URN:
uuid:0916ce7b-d9c1-446c-b570-f6bbd1be2f88
Source identifiers:
9316
Local pid:
pubs:9316

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