TY - JOUR
T1 - Vortex structure and magnetic properties of BaFe2(As 1-xPx)2 single crystals
AU - Vinnikov, L.
AU - Friedman, A.
AU - Felner, I.
AU - Troshina, A.
AU - Yeshurun, Y.
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84902280361&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/507/1/012013
DO - 10.1088/1742-6596/507/1/012013
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AN - SCOPUS:84902280361
SN - 1742-6588
VL - 507
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - PART 1
M1 - 012013
T2 - 11th European Conference on Applied Superconductivity, EUCAS 2013
Y2 - 15 September 2013 through 19 September 2013
ER -