Polaron Zeeman effect in GaAs/AlxGa1-xAs multiple-quantum-well structures
Journal
Physical Review B
Journal Volume
40
Journal Issue
6
Pages
3878-3881
Date Issued
1989
Author(s)
Abstract
A three-level (1s, 2p+, and 2p- donor states) Wigner-Brillouin perturbation theory is used to study the resonant polaron Zeeman effect for an impurity placed at the center of a GaAs/AlxGa1-xAs quantum-well structure in the presence of magnetic field. The resonant splitting caused by the polaron coupling between 1s and 2p+ states and 2p- and 2p+ states as a function of well width is calculated. The results agree with experimental data if the GaAs LO-phonon energy is lowered to 250 cm-1, which is believed to be caused by the zone folding of LO phonons in multiple-quantum-well structures. © 1989 The American Physical Society.
Type
journal article