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Anisotropic AC Behavior of Multifilamentary Bi-2223/Ag Tapes

J. -F. Fagnard·P. Vanderbemden·R. Cloots·M. Ausloos
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Abstract

In this communication, we report on the anisotropy of the superconducting properties of multifilamentary Bi-based tapes experimentally investigated by AC magnetic susceptibility measurements. The susceptibility $χ= χ' - j χ''$ was measured using a commercial system and a couple of orthogonal pick-up coils. The $χ''$ vs. temperature curves were shown to exhibit two peaks. The smaller of the peaks, occurring near T = 72K, was only visible for particular field directions and within a given frequency window. Such results point out the role played by the phase difference between the applied magnetic field and the internal magnetic field seen by the filaments.

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J. -F. Fagnard, P. Vanderbemden, R. Cloots, M. Ausloos. 2003-08-18. Anisotropic AC Behavior of Multifilamentary Bi-2223/Ag Tapes. https://doi.org/10.1109/tasc.2003.812079

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