Buss, A.; Hohls, Frank; Schulze-Wischeler, F.; Stellmach, C.; Hein, G.; Haug, Rolf J.; Nachtwei, G.
(College Park, MD : American Physical Society, 2005)
We have measured the conductivity σxx of GaAs GaAlAs Corbino devices under nonequilibrium conditions in the quantum Hall regime at low frequencies from dc up to 10 kHz. At very low frequencies up to 10-20 Hz, σxx shows a ...