High-Frequency Hopping conductivity of Disordered 2D-system in the IQHE Regime

I. L. Drichko, A. M. Diakonov, V. D. Kagan +2

High frequency (hf) conductivity in the form ${\sigma }^{hf}={\sigma }_1^{hf}-i{\sigma }_2^{hf}$ was obtained from the measurement of Surface Acoustic Waves (SAW) attenuation and velocity (f=30 MHz) i…