Physics – Condensed Matter – Superconductivity
Scientific paper
2008-03-04
Physics
Condensed Matter
Superconductivity
14 pages Text+Figs; Comments/suggestions welcome (awana@mail.nplindia.ernet.in)
Scientific paper
10.1016/j.ssc.2008.03.009
We report the synthesis and variation of superconductivity parameters such as transition temperature Tc, upper critical field Hc, critical current density Jc, irreversibility field Hirr and flux pinning parameter (Fp) for the MgB2-xCx system with nano-Carbon doping up to x=0.20. Carbon substitutes successfully on boron site and results in significant enhancement of Hirr and Jc(H). Resistivity measurements reveal a continuous decrease in Tc under zero applied field, while the same improves remarkably at higher fields with an increase in nano-C content for MgB2-xCx system. The irreversibility field value (Hirr) is 7.6 & 6.6 Tesla at 5 and 10K respectively for the pristine sample, which is enhanced to 13.4 and 11.0 Tesla for x = .08 sample at same temperatures. Compared to undoped sample, critical current density (Jc) for the x=0.08 nano-Carbon doped sample is increased by a factor of 24 at 10K at 6 Tesla field.
Awanaa V. P. S.
Bhalla G. L.
Kishana H.
Mudgel Monika
No associations
LandOfFree
Significant improvement of flux pinning and irreversibility field in nano-Carbon doped MgB2 superconductor does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Significant improvement of flux pinning and irreversibility field in nano-Carbon doped MgB2 superconductor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Significant improvement of flux pinning and irreversibility field in nano-Carbon doped MgB2 superconductor will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-405892