Microwave fluctuational conductivity in YBa${}_2$Cu${}_3$O${}_{7-\delta }$

E. Silva, R. Marcon, S. Sarti +4

We present measurements of the microwave complex conductivity at 23.9 and 48.2 GHz in YBa${}_2$Cu${}_3$O${}_{7-\delta }$ films, in the fluctuational region above $T_c$. With increasing t…