Volume 67, Number 4, August 2004
|Page(s)||655 - 661|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 August 2004|
Peak effect and surface crystal-glass transition for surface-pinned vortex array
Laboratoire Pierre Aigrain, Département de Physique de l'Ecole Normale Supérieure 24 rue Lhomond, 75005 Paris, France
2 Racah Institute of Physics, Hebrew University of Jerusalem - Jerusalem 91904, Israel
Accepted: 7 June 2004
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 crystals. The slippage length is deduced from 1–1 linear AC penetration depth measurements.
PACS: 74.25.Qt – Vortex lattices, flux pinning, flux creep / 64.60.Cn – Order-isorder transformations; statistical mechanics of model systems
© EDP Sciences, 2004
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