Reversible magnetization and critical fluctuations in systematically doped YBa${}_2$Cu${}_3$O${}_{7-\delta }$ single crystals

Hong Gao, Cong Ren, Lei Shan +5

The temperature and field dependence of reversible magnetization have been measured on a YBa${}_2$Cu${}_3$O${}_{7-\delta }$ single crystal at six different doping concentrations. It is found t…