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Thermal Suppression of Strong Pinning

Orlando S. Wagner·Guido Burkard·Vadim B. Geshkenbein·Gianni Blatter
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Abstract

We study vortex pinning in layered type-II superconductors in the presence of uncorrelated disorder for decoupled layers. Introducing the new concept of variable-range thermal smoothing, we describe the interplay between strong pinning and thermal fluctuations. We discuss the appearance and analyze the evolution in temperature of two distinct non-linear features in the current-voltage characteristics. We show how the combination of layering and electromagnetic interactions leads to a sharp jump in the critical current for the onset of glassy response as a function of temperature.

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Orlando S. Wagner, Guido Burkard, Vadim B. Geshkenbein, Gianni Blatter. 1998-03-10. Thermal Suppression of Strong Pinning. https://doi.org/10.1103/physrevlett.81.906

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