(a) Field angle and (b) field dependence of the critical current density films with cation ratios with , 0.15, 0.25, 0.35, and 0.5.
-contrast CS image of the Dy-doped structure showing the different layers in the sample.
-contrast PV images of the nondoped (a) and Dy-doped (b) YBCO layers showing the increase in the density of particles in the doped structure; (c) and (d) high resolution TEM images of the particles in the Dy-doped YBCO coated conductor.
EDX spectra of the matrix (a) and a particle (b) in the Dy-doped structure showing the absence of Ba in the particles.
STEM images at of the area analyzed by tomography, unprocessed image (a) and processed with the correction of NUI (b); tomograms obtained from the unprocessed images (c) and from the images processed with the correction of NUI (d).
Histogram of the size of the particles measured from the acquired tomogram showing a bimodal distribution in the size of the inclusions.
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