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Peak-effect and surface crystal-glass transition for surface-pinned vortex array

Bernard Placais·Norbert Lutke-Entrup·Joel Bellessa·Patrice Mathieu·Yvan Simon·Edouard Sonin
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Abstract

We present a theoretical and experimental study of the peak effect in the surface pinning of vortices. It is associated with a sharp transition in the vortex slippage length which we relate to a crossover from a weakly disordered crystal to a surface glass state. Experiments are performed on ion-beam etched Nb crystals. The slippage length is deduced from 1kHz-1MHz linear AC penetration depth measurements.

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Bernard Placais, Norbert Lutke-Entrup, Joel Bellessa, Patrice Mathieu, Yvan Simon, Edouard Sonin. 2004-03-24. Peak-effect and surface crystal-glass transition for surface-pinned vortex array. https://doi.org/10.1209/epl%2Fi2004-10093-9

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