Flux creep phenomenon in multifilamentary superconducting wires

The decrease of persistent induced currents was investigated in superconducting loops made of NbTi multifilamentary wires. A very low contact resistance was achieved, less than 10 −17 Ω, allowing for observation of the logarithmic time dependence of the flux creep. The results are discussed using a...

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Veröffentlicht in:Physics letters. A 1981-12, Vol.87 (1), p.61-63
Hauptverfasser: Chaussy, J., Genicon, J.L., Mazuer, J., Renard, M., Sulpice, A.
Format: Artikel
Sprache:eng
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Zusammenfassung:The decrease of persistent induced currents was investigated in superconducting loops made of NbTi multifilamentary wires. A very low contact resistance was achieved, less than 10 −17 Ω, allowing for observation of the logarithmic time dependence of the flux creep. The results are discussed using a new argument adapted from a phenomenological model of energy relaxations in spin glasses.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(81)90616-2