Dynamics of inter-landau-level excitations of a two-dimensional electron gas in the quantum Hall regime.
The femtosecond inter-Landau-level dynamics of a two-dimensional electron gas in a large magnetic field is investigated by degenerate four-wave mixing on modulation doped quantum wells. We observe a large transfer of oscillator strength to the lowest Landau level, and unusual dynamics due to Coulomb correlation. We interpret the effects using a model based on shakeup of the electron gas.
Fromer
N A
NA
Department of Physics, University of California at Berkeley, 94720, USA.
Lai
C E
CE
Chemla
D S
DS
Perakis
I E
IE
Driscoll
D
D
Gossard
A C
AC