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.
Department of Physics, University of California at Berkeley, 94720, USA.
N A
NA
Fromer
C E
CE
Lai
D S
DS
Chemla
I E
IE
Perakis
D
D
Driscoll
A C
AC
Gossard