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ac losses of V3Ga tapes

✍ Scribed by O. Horigami; J.F. Bussiere; Y. Tanaka

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 440 KB
Volume: 15
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(75)90098-3

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✦ Synopsis

60 Hz losses, measured at 4.2 K, are reported for a number of VjGa tapes reacted between 625°C and 775°C for various lengths of time. The losses are shown to depend mainly on the bulk critical current density Jc, except at low fields (~ 500 Oe) where surface currents, and hence surface roughness, play a dominant role. Measurements of losses in a dc bias field indicate that the surface currents are strongly field dependent whereas the bulk Jc has a much slower field dependence.

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