Conduction electrons in acceptor-doped GaAs/GaAlAs heterostructures: a review
Wlodek Zawadzki, Andre Raymond, and Maciej Kubisa
TL;DR
This review discusses the magneto-optical and magneto-transport effects in GaAs/GaAlAs heterostructures doped with acceptors, highlighting how their behavior under magnetic fields differs from donor-doped systems.
Contribution
It provides a comprehensive overview of the effects of acceptor doping in GaAs/GaAlAs heterostructures and compares their magnetic behavior to donor-doped counterparts.
Findings
Distinct magneto-optical effects observed in acceptor-doped systems.
Behavior under magnetic fields significantly differs from donor-doped heterostructures.
Highlights the role of residual acceptors like C atoms.
Abstract
We review magneto-optical and magneto-transport effects in GaAs/GaAlAs heterostructures doped in GaAlAs barriers with donors, providing two-dimensional electron gas in GaAs quantum wells, and additionally doped with smaller amounts of acceptors (mostly Be atoms) in the vicinity of 2DEG. One may also deal with residual acceptors (mostly C atoms). The behavior of such systems in the presence of a magnetic field differs appreciably from those doped in the vicinity of 2DEG with donors.
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