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Scientific article
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Magnetization scaling below Tc in BiSrCaCuO and TlBaCaCuO superconducting ceramics

Published inJournal of Physics. Condensed Matter, vol. 6, no. 28, p. L399-L404
Publication date1994
Abstract

The reversible magnetization M(T,H) in the mixed state of the quasi-two-dimensional superconductor Bi₂Sr₂CaCu₂O₈ appears to factorize into a product f(T)g(H). It was recently argued that this implies a puzzling temperature-independent critical field Hc2, at least in the region where scaling is observed. We propose an alternative explanation in which this scaling property is approximate and results from the presence of vortex fluctuations, keeping a conventional temperature dependence for Hc2(T). New data in the BiSrCaCuO (2212) and TlBaCaCuO (2201, 2212) systems that obey to a good approximation the factorization M(T,H)=f(T)g(H) are presented.

Citation (ISO format)
TRISCONE, Gilles et al. Magnetization scaling below <i>T</i><sub>c</sub> in BiSrCaCuO and TlBaCaCuO superconducting ceramics. In: Journal of Physics. Condensed Matter, 1994, vol. 6, n° 28, p. L399–L404. doi: 10.1088/0953-8984/6/28/001
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