Figure 4

\({{\rm{J}}}_{{\rm{c}}}^{{\rm{s}}{\rm{e}}{\rm{l}}{\rm{f}}}\) (5 K) dependence with nanoparticle molar concentration (M) of YBCO-BZO (10 nm) pn-nanocomposite films (red triangle) compared with spontaneously segregated YBCO nanocomposite films (black sphere). Error bars are determined from the fit uncertainty in the corresponding data analysis.