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Strong competition between the and flux pinning mechanisms in doped with carbon containing compounds
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10.1063/1.3366710
/content/aip/journal/jap/107/11/10.1063/1.3366710
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/11/10.1063/1.3366710

Figures

Image of FIG. 1.
FIG. 1.

The electrical resistivity vs temperature for the 10 wt % malic acid doped and the 5 wt % nanocarbon doped sample sintered at . For comparison, data from Ref. 10 for the 10 wt % silicone oil doped sample sintered at are also shown.

Image of FIG. 2.
FIG. 2.

Magnetic dependence of the critical current density for malic acid and nanocarbon doped . Results for of silicone oil doped (Ref. 10) are also shown.

Image of FIG. 3.
FIG. 3.

The upper critical and irreversibility fields of 10 wt % malic acid, 5 wt % nanocarbon, and 10 wt % silicone oil doped as a function of temperature. The solid curves are fits to , with fitting parameter . Data for silicone oil doped sample have been taken from Ref. 10.

Image of FIG. 4.
FIG. 4.

Normalized temperature dependence of the crossover field . The solid curves are fits to Eq. (4). Inset: double logarithmic plot of as a function of , with the solid line showing the fit given by Eq. (2). The crossover fields and are shown by arrows. The data for the silicone-oil doped and undoped samples are extracted from Refs. 10 and 24, respectively.

Image of FIG. 5.
FIG. 5.

and pinning contributions as a function of normalized temperature for 10 wt % malic acid doped (squares) and 5 wt % nanocarbon doped sintered at (stars).

Image of FIG. 6.
FIG. 6.

(a) pinning and (b) pinning contributions as a function of normalized temperature for undoped sintered at (triangles), 10 wt % malic acid doped (squares), 5 wt % nanocarbon doped sintered at (stars), and 10 wt % silicone oil doped sintered at (circles) from Ref. 10.

Tables

Generic image for table
Table I.

The resistivity at 40 and 300 K, and the connectivity factor of 5 wt % nanocarbon, 10 wt % malic acid, and 10 wt % silicone oil doped . The resistivity data for the silicone oil doped sample are extracted from Ref. 10.

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/content/aip/journal/jap/107/11/10.1063/1.3366710
2010-06-10
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Strong competition between the δl and δTc flux pinning mechanisms in MgB2 doped with carbon containing compounds
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/11/10.1063/1.3366710
10.1063/1.3366710
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