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Strong enhancement of flux pinning in thick films grown on ion-beam assisted deposition-MgO templates via three-dimensional self-assembled stacks of nanodots
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10.1063/1.2781534
/content/aip/journal/jap/102/6/10.1063/1.2781534
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/6/10.1063/1.2781534
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Figures

Image of FIG. 1.
FIG. 1.

Cross-section transmission electron micrographs of thick NdBCO film grown on IBAD-MgO templates with self-aligned BZO nanodot columns. (a) Full cross-sectional area of NdBCO layer on IBAD-MgO templates with configuration of /Hastelloy. (b)–(d) High-magnification images of film showing a high density of columnar defects in the NdBCO layers. (e) High-magnification image of film showing the presence of significant strain in the film.

Image of FIG. 2.
FIG. 2.

(Color online) Transport vs magnetic field at 77 K, in both field directions of and for thick NdBCO and films (a), and the ratio between the both films as a function of magnetic field (b).

Image of FIG. 3.
FIG. 3.

(Color online) Angular dependence of at 77 K and 1 T for thick NdBCO and films, in a magnetic field applied to with respect to the -axis of the film.

Image of FIG. 4.
FIG. 4.

(Color online) The field-dependent at 77 K for and (a), and the angular-dependent at 77 K and 1 T (b) for thick NdBCO and films.

Image of FIG. 5.
FIG. 5.

Cross-section transmission electron micrographs of thick NdBCO film grown on IBAD-MgO templates with self-aligned BZO nanodot columns. (a) Low-magnification image of film showing many grain boundaries. (b)–(d) High-magnification images of film showing the presence of BZO nanodot columns.

Image of FIG. 6.
FIG. 6.

(Color online) Transport at both temperatures of 77 and 65 K for thick NdBCO and films when the magnetic field is applied up to 8 T with the field parallel to the -axis of the film.

Image of FIG. 7.
FIG. 7.

(Color online) Pinning force, , at the temperatures of 77 K (a) and 65 K (b) for thick NdBCO and films as a function of magnetic field.

Image of FIG. 8.
FIG. 8.

(Color online) The field-dependent at 77 and 65 K for with the magnetic field up to 8 T for thick NdBCO and films.

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/content/aip/journal/jap/102/6/10.1063/1.2781534
2007-09-20
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Strong enhancement of flux pinning in thick NdBa2Cu3O7-δ films grown on ion-beam assisted deposition-MgO templates via three-dimensional self-assembled stacks of BaZrO3 nanodots
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/6/10.1063/1.2781534
10.1063/1.2781534
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