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Figure 9. Microstructural characterization of YBCO/BZO nanocomposite films and the relationship between Fp and magnetic field. (A) Cross-sectional TEM image of the nanocomposite film along the <100> direction of YBCO, which clearly shows the BZO nanodots. (B) High-resolution TEM image of BZO nanodots grown on a single-crystal substrate interface. The inset is a fast Fourier transformation image, where the diffraction peaks of BZO and YBCO show a mutual epitaxy relationship. (C) Compared with the standard YBCO-TFA film (65 K) and NbTi wire (4.2 K), the Fp curves of YBCO/BZO nanocomposite films at 65 and 77 K were obtained[112] © 2007 Nature Publishing Group.
