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Variation of c-axis correlation on vortex pinning by ab-plane non-superconducting layers in YBa2Cu3O7 films
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10.1063/1.4818518
/content/aip/journal/jap/114/7/10.1063/1.4818518
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/7/10.1063/1.4818518

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic illustration of designed nanostructure in the YBCO + BSO/PrBCO MLs. The films consist of BSO nanorods (//-axis) andPrBCO non-superconducting layers (//-plane). TEM images of theYBCO + BSO/PrBCO MLs (b) (60 nm/5 nm) (c) (60 nm/8 nm), and (d) (15 nm/3 nm).

Image of FIG. 2.
FIG. 2.

Magnetic field dependences of at 77 K in magnetic field parallel to the -axis in YBCO + BSO/PrBCO MLs of (a)  = 3 nm and (b)  = 60 nm.

Image of FIG. 3.
FIG. 3.

(a) dependence of at 1 T in temperatures of 65 K and 77 K in the YBCO + BSO/PrBCO MLs with 3 nm PrBCO layers. (b) dependence of at 1 T in temperatures of 65 K and 77 K in the YBCO + BSO/PrBCO MLs with 60 nm YBCO + BSO layers. Magnetic field was applied parallel to the -axis both in (a) and in (b).

Image of FIG. 4.
FIG. 4.

(a) - curves in the YBCO + BSO/PrBCO (60 nm/3 nm) (30 nm/3 nm), and (15 nm/3 nm) MLs at 77 K and 1 T. (b) - curves in the YBCO + BSO SL and YBCO + BSO/PrBCO (60 nm/1 nm) (60 nm/8 nm), and (60 nm/11 nm) MLs at 77 K and 1 T.

Image of FIG. 5.
FIG. 5.

dependence of / at 1 T in the YBCO + BSO/PrBCO MLs with 3 nm PrBCO layers. (b) dependence of / at 1 T in the YBCO + BSO/PrBCO MLs with 60 nm YBCO + BSO layers. Magnetic field was applied parallel to the -axis both in (a) and in (b).

Image of FIG. 6.
FIG. 6.

(a) Resistivity as a function of 1000/ at 1 T in the YBCO + BSO/PrBCO MLs with 3 nm PrBCO layers. (b) Resistivity as a function of 1000/ at 1 T in the YBCO + BSO/PrBCO MLs with 60 nm YBCO + BSO layers. Magnetic field was applied parallel to the -axis both in (a) and in (b). (c) dependence of at 1 T in the YBCO + BSO/PrBCO MLs with 3 nm PrBCO layers. (d) dependence of at 1 T in the YBCO + BSO/PrBCO MLs with 60 nm YBCO + BSO layers.

Image of FIG. 7.
FIG. 7.

Angular dependences of resistivity near ( = 0°) in (a) the YBCO + BSO SL and YBCO + BSO/PrBCO (b) (30 nm/3 nm) (c) (15 nm/3 nm) (d) (60 nm/8 nm), and (e) (60 nm/11 nm) MLs. Dashed lines show the trapping angle in the YBCO + BSO SL. Inset in (e) shows enlarged view of the curve at = + 0.3 K. A clear dip is observed at  = 0°. Inset of (a), (c), and (e) show schematic illustrations of the vortex structure.

Image of FIG. 8.
FIG. 8.

- curves (from Fig. 2 ) and - cos θ ones (from Fig. 4 ) in the YBCO + BSO SL (a), YBCO + BSO/PrBCO (60 nm/11 nm) (b), (30 nm/3 nm) (c), and (15 nm/3 nm) MLs (d) at 77 K.

Tables

Generic image for table
Table I.

and at 77 K and a self field in the samples.

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/content/aip/journal/jap/114/7/10.1063/1.4818518
2013-08-16
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Variation of c-axis correlation on vortex pinning by ab-plane non-superconducting layers in YBa2Cu3O7 films
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/7/10.1063/1.4818518
10.1063/1.4818518
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