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Direct observation and analysis of nanoscale precipitates in
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Image of FIG. 1.
FIG. 1.

Dynamic force microscope image of the sample with (average particle size is ). Bottom panel presents dispersion profile of nanoparticles along the white line at the top.

Image of FIG. 2.
FIG. 2.

The atomic-resolution high angle annular dark field (HAADF) scanning transmission electron microscopy (STEM) image of the sample with (average particle size is ) (left). The bright-field image of the same area (right).

Image of FIG. 3.
FIG. 3.

An atomic-resolution high-angle annular dark-field (HAADF) scanning transmission electron microscope (STEM) image of the sample from Fig. 2.

Image of FIG. 4.
FIG. 4.

Field dependence of super-current density of samples with refined by ball-milling for 0.3 to (200, 150, 100, and ). All the samples were measured at for axis (a). The experimental data (symbols) were fitted by Eq. (1) (the full lines). The decomposition into two contributions is shown in the inset. A remarkable super-current density was observed also at higher temperatures, at about liquid argon temperature, (b) and liquid oxygen temperature, (c).


Generic image for table
Table I.

The STEM-EDXHAADF results for sample with addition of (average particle size is ) . The diameter of the analyzed spot was .

Generic image for table
Table II.

The fitting parameters for dependence of sample with addition of of various average particle sizes measured at . The theoretical data of were calculated according to Eq. (1).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Direct observation and analysis of nanoscale precipitates in (Sm,Eu,Gd)Ba2Cu3Oy