Global and local critical current density in superconducting SmFeAsO$_{1-x}$F$_x$ measured by two methods

Details Global and local critical current density in superconducting SmFeAsO$_{1-x}$F$_x$ measured by two methods Global and local critical current density in superconducting SmFeAsO$_{1-x}$F$_x$ measured by two methods

2009-02-07

arxiv.org/abs/0902.1214v2

Physics

Condensed Matter

Superconductivity

20 pages, 5 figures. to be published in Physica C

Scientific paper

The critical current densities of polycrystalline bulk SmFeAsO$_{1-x}$F$_x$ prepared by the powder-in-tube (PIT) method and by a conventional solid-state reaction were investigated using the remnant magnetic moment method and Campbell's method. Two types of shielding current, corresponding to global and local critical current densities $J_{\rm c}$ were observed using both measurement methods. The global and local $J_{\rm c}$ were on the order of $10^7$ A/m$^2$ and $10^{10}$ A/m$^2$ at 5 K, respectively. The local $J_{\rm c}$ decreased slightly with increasing magnetic field. The global $J_{\rm c}$ was independent of the preparation method, while the local $J_{\rm c}$ was larger for samples prepared by PIT than for those prepared by solid-state reaction.

Affiliated with

Also associated with

No associations

Rating

Global and local critical current density in superconducting SmFeAsO$_{1-x}$F$_x$ measured by two methods 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 Global and local critical current density in superconducting SmFeAsO$_{1-x}$F$_x$ measured by two methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Global and local critical current density in superconducting SmFeAsO$_{1-x}$F$_x$ measured by two methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-311919