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This paper studies the striking correlation between nanosized structuralpatterns in YBCO films and macroscopic transport current. A nanosized networkof parallel Josephson junctions laced by insulating dislocations is almostmimicking the grain boundary structural network. It contributes to themacroscopic properties and accounts for the strong intergranular pinning acrossthe film in the intermediate temperature range. The correlation between the twonetworks enables to find out an outstanding scaling law in the (Jc,B) plane andto determine meaningful parameters concerning the matching between the vortexlattice and the intergranular defect lattice. Two asymptotic behaviors of thepinning force below the flux flow regime are checked: the corresponding vortexphases are clearly individuated.Comment: 4 pages, 4 figure

Nanosize patterns as reference structures for macroscopic transport properties and vortex phases in YBCO films