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Current and field dependent proximity effects in the heterostructure
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View: Figures


Image of FIG. 1.
FIG. 1.

The XRD patterns of (a) LAO substrate, (b) NSMO single layer, (c) YBCO single layer, and (d) NSMO/YBCO bilayer.

Image of FIG. 2.
FIG. 2.

(a) Magnetization vs temperature curve for NSMO/YBCO bilayer. The closed circles and the open circles represent zero-field-cooled (ZFC) and field-cooled (FC) data, respectively. The curves for YBCO and NSMO are shown in the upper and the lower insets, respectively, for ZFC data. (b) Temperature dependence of critical current density at (open circles) and 0.5 T (close circles).

Image of FIG. 3.
FIG. 3.

Temperature dependent resistivity of NSMO/YBCO bilayer for several ranging between and . Insets [(a) and (b)] show the variation of and as a function of .

Image of FIG. 4.
FIG. 4.

Temperature and current density dependent resistivity of NSMO/YBCO bilayer with ranging from to at two different magnetic fields of (a) and (b) 0.5 T. Insets show the variation of (lower inset) and (upper inset) as a function of .

Image of FIG. 5.
FIG. 5.

Temperature dependent of resistivity of NSMO/YBCO bilayer at various magnetic fields between 0 and 5 T. Inset (a) shows the on an expanded temperature scale closed to . Inset (b) exhibits the variation of with .

Image of FIG. 6.
FIG. 6.

Variation of MR as a function of applied magnetic field at various fixed temperatures for (a) NSMO single layer and (b) NSMO/YBCO bilayer samples.

Image of FIG. 7.
FIG. 7.

Variation of MR as a function of current density at a fixed temperature of 50 K at various magnetic fields ranging from to 5 T. Inset shows MR vs for and exhibiting crossover from negative to positive MR.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Current and field dependent proximity effects in the Nd0.43Sr0.57MnO3/YBa2Cu3O7 heterostructure