YBCO oxygen partial pressure

Figure 2-19. Oxygen partial pressure versus temperature phase diagram for YBCO films. (From Zhao et al. [144].)...

The dependence of upon film composition for CVD-derived YBCO films using Y(dpm)3, Ba(dpm)2, and Cu(dpm)2 precursors under 1.25 Torr oxygen partial pressure with Ts = 750°C is shown in Figure 2-21 [146], Elemental determination by X-ray spectroscopy (EDS) was used to assay film stoichiometry. The dashed circle in Figure 2-21 corresponds to superconducting films, with the smaller solid circle indicating the range... 

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