Frequency Scaling of Microwave Conductivity in the Integer Quantum Hall Effect Minima

R. M. Lewis, J. P. Carini

We measure the longitudinal conductivity ${\sigma }_{xx}$ at frequencies $1.246\mathrm{GHz}\le f\le 10.05$ GHz over a range of temperatures $235\mathrm{mK}\le T\le 4.2$ K with particular e…