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Relation between the critical current and the value of ReBCO thin films: A scaling law for flux pinning of ReBCO thin films
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10.1063/1.2769285
/content/aip/journal/jap/102/4/10.1063/1.2769285
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/4/10.1063/1.2769285
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Log-log plots of the characteristics for SmBCO coated conductor measured at various field, temperature, and angle. The values are defined as the linear slope in the electric field range of . Solid lines are calculated with the obtained values.

Image of FIG. 2.
FIG. 2.

The critical current and the value at various fields and temperatures as functions of angle between the axis and the applied field. correspond to field parallel to the axis, and at field is along the plane.

Image of FIG. 3.
FIG. 3.

The field dependencies of the critical current and the value at various angles and temperatures. Kramer plots are also presented for comparison. Solid lines are calculated with Eqs. (1)–(3).

Image of FIG. 4.
FIG. 4.

The field dependencies of the pinning force at for various values of . Solid lines are calculated with the Kramer model including thermal activation. Dashed lines are calculated with , where . The fitting values for the dashed lines are listed in the inset.

Image of FIG. 5.
FIG. 5.

Normalized pinning force as a function of reduced field , where or .

Image of FIG. 6.
FIG. 6.

Normalized [Eq. (1)] as a function of reduced field for several values of the factor (solid lines). A dotted line corresponds to the usual Kramer FLL shearing model, . , which is proportional to , are also drawn together for comparison.

Image of FIG. 7.
FIG. 7.

Kramer plots and the field dependencies of the value for the SmBCO coated conductor at at various angle .

Image of FIG. 8.
FIG. 8.

The angular dependencies of the fitting parameter and at each temperature.

Image of FIG. 9.
FIG. 9.

The angular dependencies of and at each temperature. Solid lines are calculated with the Tinkham model, Eq. (8).

Image of FIG. 10.
FIG. 10.

The temperature dependencies of and at various angles.

Image of FIG. 11.
FIG. 11.

The angular dependencies of the factor and the pinning force maximum at each temperature.

Image of FIG. 12.
FIG. 12.

Log-log plots of the normalized pinning force maximum vs the normalized upper critical field at each temperature.

Image of FIG. 13.
FIG. 13.

The critical currents as a function of the reduced field at each temperature.

Image of FIG. 14.
FIG. 14.

The field dependencies of the critical current density for YBCO thin film deposited on a substrate reported by Yamada et al. (Ref. 15). Kramer plots and field dependencies of the value are drawn together for comparison. Solid lines are calculated with Eqs. (1)–(3).

Image of FIG. 15.
FIG. 15.

The angular dependencies of , , the irreversibility field , the pinning force maximum , the factor, and for YBCO thin film ND1T80 sample at .

Image of FIG. 16.
FIG. 16.

The angular dependencies of the critical current density and the value at for YBCO thin film deposited on a substrate reported by Yamada et al. (Ref. 15).

Image of FIG. 17.
FIG. 17.

The field dependencies of the critical current density at for YBCO thin film LD1T500. Kramer plots and field dependencies of the value are drawn together for comparison. Solid lines are calculated with Eqs. (1)–(3).

Image of FIG. 18.
FIG. 18.

The angular dependencies of , , the irreversibility field , the pinning force maximum , the factor, and for YBCO thin film LD1T500 sample at .

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/content/aip/journal/jap/102/4/10.1063/1.2769285
2007-08-17
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Relation between the critical current and the n value of ReBCO thin films: A scaling law for flux pinning of ReBCO thin films
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/4/10.1063/1.2769285
10.1063/1.2769285
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