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

E. Silva, R. Marcon, R. Fastampa +2

We present measurements of the fluctuational excess conductivity at 48 GHz and 24 GHz in YBa${}_2$Cu${}_3$O${}_{7-\delta }$ films above the transition temperature. The measurements depart…