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oai:recercat.cat:2445/132762025-12-04T20:48:27Zcom_2072_1057col_2072_478822col_2072_478917

00925njm 22002777a 4500 dc Moretti, Paolo author Miguel López, María del Carmen author Zaiser, Michael author Zapperi, Stefano author 2010-07-05T09:40:44Z 2010-07-05T09:40:44Z 2004 We discuss the formation of a vortex polycrystal in type II superconductors from the competition between pinning and elastic forces. We compute the elastic energy of a deformed grain boundary, which is strongly nonlocal, and obtain the depinning stress for weak and strong pinning. Our estimates for the grain size dependence on the magnetic field strength are in good agreement with previous experiments on NbMo. Finally, we discuss the effect of thermal noise on grain growth. Superconductivitat Cristal·lografia Superconductivity Crystallography Growth of a vortex polycrystal in type II superconductors