Abstract
The granular nature of ceramic YBCO materials is known to lead to non-linear effects in the a.c. susceptibility. These are associated with the different superconducting characteristics of the inter- and intragranular weak link system. The presence of either external magnetic fields, or transport currents can severely change the magnetic nature of the sample and hence the observed non-linear properties.
Chief among these effects is the generation of harmonics of the drive waveform in a simple a.c. susceptibility measurement. We have observed these changes for a range of d.c. transport currents and magnetic fields applied during the susceptibility observation. The results have been interpreted in terms of the critical state model.
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© 1993 Springer-Verlag Tokyo
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Matthews, D.N., Yue, Y., Wang, J., Taylor, K.N.R., Russell, G.J. (1993). Effects of Transport Currents and Static Magnetic Fields on Harmonic Generation in YBCO Ceramics. In: Bando, Y., Yamauchi, H. (eds) Advances in Superconductivity V. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68305-6_122
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DOI: https://doi.org/10.1007/978-4-431-68305-6_122
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68307-0
Online ISBN: 978-4-431-68305-6
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