Unusual T_c variation with hole concentration in Bi_2Sr_{2-x}La_xCuO_{6+δ}

Mu-Yong Choi, J. S. Kim

We have investigated the $T_c$ variation with the hole concentration $p$ in the La-doped Bi 2201 system, Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_{6+\delta }$. It is found that the Bi 2201 system does…