Doping dependence on the de-pinning current in Bi2212

TYPECondensed Matter Seminar
Speaker:Muntaser Naamneh
Affiliation:Physics Department, Technion
Location:Lidow 724
The effect of oxygen doping on the critical de-pinning current density, Jc, was
measured in a series of high quality c-axis oriented Bi2212 thin films. For
each doping level, we measured the temperature dependence of Jc. We find that
all samples have the same temperature dependence but the critical current at
zero temperature, Jc(0), has a non-trivial doping dependence with a maximum at
a unique doping level in the overdoped side of the superconducting dome.