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Persistent supercurrents in ring-shaped single crystal
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10.1063/1.3374661
/content/aip/journal/jap/107/8/10.1063/1.3374661
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/8/10.1063/1.3374661

Figures

Image of FIG. 1.
FIG. 1.

The photograph of the ring-shaped BSCCO crystal.

Image of FIG. 2.
FIG. 2.

The dependence of the persistent supercurrent density on temperature measured in the ring-shaped BSCCO crystal (unannealed sample A0) between 1 and after the critical state was established.

Image of FIG. 3.
FIG. 3.

Dependence of the persistent supercurrent density on time measured at different temperatures between 24 and 46 K in the ring-shaped BSCCO crystal (unannealed sample A0).

Image of FIG. 4.
FIG. 4.

The effective energy barrier as a function of the persistent supercurrent density calculated for the unannealed and vacuum annealed ring-shaped BSCCO crystal. The suppression of the supercurrent density due to annealing is responsible for the shift in to low current density. The values of the critical exponents are shown in Table I. The inset: typical dependence of the thermal factor on temperature.

Image of FIG. 5.
FIG. 5.

Dependence of the persistent supercurrent density (1 s after the critical state was established) on temperature, measured for unannealed and vacuum annealed ring-shaped BSCCO crystal (solid lines are guides to the eye).

Tables

Generic image for table
Table I.

Annealing conditions of the ring-shaped BSCCO crystal, and the vortex critical exponents and at temperatures below and above , respectively.

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/content/aip/journal/jap/107/8/10.1063/1.3374661
2010-04-21
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Persistent supercurrents in ring-shaped Bi2Sr2CaCu2Ox single crystal
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/8/10.1063/1.3374661
10.1063/1.3374661
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