Observation of switching and narrow-band noise in the condensed phase of a GaAs/Ga0.77Al0.23As heterojunction

Switching and narrow-band noise, phenomena usually associated with charge- and/or spindensity waves, have been observed for the first time in a semiconductor heterojunction. These phenomena occur in the recently reported condensed phase of the two-dimensional electron gas which forms at a GaAs/Ga0.77Al0.23As heterojunction. © 1986 The American Physical Society.