Vortex structure and magnetic properties of BaFe2(As 1-xPx)2 single crystals

L. Vinnikov, A. Friedman, I. Felner, A. Troshina, Y. Yeshurun

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


Magnetic decoration of BaFe2(As1-xPx) 2 revealed an hexagonal vortex lattice in overdoped single crystals (x>0.4, Tc=14-18 K). A disordered vortex lattice was observed in a crystals with optimal content of phosphorus (x 0.4, Tc 25-30 K). Magneto-optical studies and global magnetization measurement of the optimally-doped crystal have led to an estimated critical current density of ∼ 105A/cm2 at 5-12 K in fields up to 0.7 T. This high critical current density suggests strong pinning, probably due to defects, a result consistent with the observed disordered vortex lattice. The critical current density of the overdoped crystal is much smaller, i.e. ∼ 10 4 A/cm2 at 5 K in fields up to 0.1 T, decreasing to virtually zero at 0.3 T.

Original languageEnglish
Article number012013
JournalJournal of Physics: Conference Series
Issue numberPART 1
StatePublished - 2014
Event11th European Conference on Applied Superconductivity, EUCAS 2013 - Genoa, Italy
Duration: 15 Sep 201319 Sep 2013


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