Self-organized criticality effect on stability: Magneto-thermal oscillations in a granular YBCO superconductor

L. Legrand, I. Rosenman, R. G. Mints, G. Collin, E. Janod

Research output: Contribution to journalArticlepeer-review

Abstract

We show that the self-organized criticality of Bean's state in each of the grains of a granular superconductor results in magneto-thermal oscillations. We find that the frequency of these oscillations is proportional to the external magnetic field sweep rate Be and is inversely proportional to the square root of the heat capacity. We demonstrate experimentally and theoretically that this dependence is influenced mainly by the granularity of the superconductor.

Original languageEnglish
Pages (from-to)287-292
Number of pages6
JournalEurophysics Letters
Volume34
Issue number4
DOIs
StatePublished - 1 May 1996

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