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

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

– 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 Ḃe and is inversely proportional to the square root of the heat capacity. We demonstrate experimentally and theoretically that this depe...

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ژورنال

عنوان ژورنال: Europhysics Letters (EPL)

سال: 1996

ISSN: 0295-5075,1286-4854

DOI: 10.1209/epl/i1996-00452-6