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Schematic of Y solubility in 3BaO–5CuO flux at (Y solubility is extrapolated from (see Ref. 12) while other data are from the literature (see Ref. 13) and our differential thermal analysis data). Concentrations in the flux before nucleation and during steady state growth are indicated.
Relative critical current density of -thick YBCO films as a function of the growth temperature for growth at (flux thickness 100–500 nm). The three regimes for HLPE growth relate to the phase diagram in Fig. 1.
Variation of for several applied fields for sample HR64 immersed in liquid at atmospheric pressure.
TEM images of HLPE sample on (a) STO substrate; (a) low magnification cross-section TEM image showing high-quality growth of the YBCO film with epitaxial nanoparticles (marked with arrows); (b) high-resolution TEM image of a typical coherent inclusion in the YBCO matrix indicated by arrows in (a); (c) high-resolution TEM image of epitaxial inclusions on the STO substrate also indicated by arrows in (a).
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