Linear Temperature Dependence of the Lower Critical Field $H_{c1}$ in F-Doped LaOFeAs Superconductors

Cong Ren, Zhao-Sheng Wang, Huan Yang +5

We present the first experimental results of the lower critical field $H_{c1}$ of the newly discovered F-doped superconductor LaO${}_{0.9}$F${}_{0.1}$FeAs (F-LaOFeAs) by global and loc…