On the importance of grain boundaries in high-Tc films: simulation results

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dc.creatorMulet, R.
dc.creatorAltshuler, E.
dc.date2000-01-26
dc.date.accessioned2026-07-07T02:36:38Z
dc.date.available2026-07-07T02:36:38Z
dc.descriptionThe importance of the distribution and ``weakness'' of grain boundary junctions in the magnetic field dependence of the transport critical current in HTc films is assessed through simulations. The system is studied with the applied field either parallel or perpendicular to the c axis of the sample. For realistic sample parameters, it is demonstrated that the presence of ``high'' misorientation angles between grains depresses the zero - field critical current density in both orientations, and provokes a transition from pinning-mediated to Fraunhoffer-like field dependencies of the critical current density. Our results also suggest that there is a threshold misorientation angle above which the critical current density remains constant.
dc.description8 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0001377
dc.identifierhttp://arxiv.org/abs/cond-mat/0001377
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/15996
dc.subjectSuperconductivity
dc.titleOn the importance of grain boundaries in high-Tc films: simulation results
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