Mapping the current distribution in YBa2Cu3O7−x thin films with striations

Wang, L.B.; Price, Michael B.; Young, James L.; Kwon, C.; Levin, Gilbert V.; Haugan, Timothy J.; Barnes, Paul N.

doi:10.1016/j.physc.2004.12.007

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…We expect our theory to be accurate only at sufficiently low applied fields that h < h max or H a < H max , where h max is the reduced field at which b c = w − c . From (30) we obtain…”

Section: Critical Current Due Only To Edge Barriersmentioning

confidence: 99%

“…Carr and Oberly [23] have suggested that that the ac losses in tapes several millimeters wide ~x ỹ w -w ~d 0 could be reduced by first subdividing the tapes by striations and then twisting the tapes. Analytical and experimental results pursuing this idea have been reported in [24,25,26,27,28,29,30,31,32,33,34,35,36,37]. Ashworth and Grilli [38] have recently proposed a variation of this approach, in which the tape is also subdivided into narrow parallel filaments, but instead of twisting the tape, the filaments are interrupted periodically by transverse cross-cuts bridged with normal metal.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic-field dependence of the critical currents in a periodic coplanar array of narrow superconducting strips

Clem

Brojeny

Mawatari

2007

Supercond. Sci. Technol.

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Abstract. We calculate the magnetic-field dependence of the critical current due to both geometrical edge barriers and bulk pinning in a periodic coplanar array of narrow superconducting strips. We find that in zero or low applied magnetic fields the critical current can be considerably enhanced by the edge barriers, but in modest applied magnetic fields the critical current reduces to that due to bulk pinning alone.

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“…We expect our theory to be accurate only at sufficiently low applied fields that h < h max or H a < H max , where h max is the reduced field at which b c = w − c . From (30) we obtain…”

Section: Critical Current Due Only To Edge Barriersmentioning

confidence: 99%