Fishtail effect and vortex dynamics in LiFeAs single crystals

Details Fishtail effect and vortex dynamics in LiFeAs single crystals Fishtail effect and vortex dynamics in LiFeAs single crystals

2010-09-24

arxiv.org/abs/1009.4896v1

Phys. Rev. B 83, 094502 (2011)

Physics

Condensed Matter

Superconductivity

5 pages, 5 figures

Scientific paper

We investigate the fishtail effect, critical current density ($J_c$) and vortex dynamics in LiFeAs single crystals. The sample exhibits a second peak (SP) in the magnetization loop only with the field $||$ c-axis. We calculate a reasonably high $J_c$, however, values are lower than in 'Ba-122' and '1111'-type FeAs-compounds. Magnetic relaxation data imply a strong pinning which appears not to be due to conventional defects. Instead, its behavior is similar to that of the triplet superconductor Sr$_2$RuO$_4$. Our data suggest that the origin of the SP may be related to a vortex lattice phase transition. We have constructed the vortex phase diagram for LiFeAs on the field-temperature plane.

Affiliated with

Also associated with

No associations

Rating

Fishtail effect and vortex dynamics in LiFeAs single crystals 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 Fishtail effect and vortex dynamics in LiFeAs single crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fishtail effect and vortex dynamics in LiFeAs single crystals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-275419