Article ID Journal Published Year Pages File Type
1874564 Physics Procedia 2014 4 Pages PDF
Abstract

We report the effect of 320 MeV Au irradiation in (Ba0.6K0.4)Fe2As2 single crystals including its dose dependence. We found that the suppression of Tc is weak up to a certain level of irradiation in agreement with the previous report. Critical current density (Jc) is strongly enhanced by the introduction of defects up to 15 MA/cm2 at 2 K under self- field, which is 10 times larger than the pristine crystal. The field dependence of Jc changes from H-0.5 to H-1, which indicates that columnar defects are effectively introduced in the crystal by the irradiation.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)