Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.
DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.
We present a combined experimental and theoretical investigation of shallow two-dimensional acceptor states in the presence of an external magnetic field for center-doped GaAs/AlxGa1-xAs quantum wells (QW's). The calculated 1S3/2(GAMMA6)-2S3/2(GAMMA6) transition energies of the acceptor state are in excellent agreement with our resonant Raman-scattering data. The g factors obtained from our calculations for varying well width of QW's are also in good agreement with available experimental data. These results confirm the value of the Luttinger parameter kappa = 1.2+/-0.05 for bulk GaAs.
Majed Chergui, Mounir Driss Mensi