Abstract
This paper describes some recent developments in our understanding of quantum transport phenomena in mesoscopic semiconducting structures. Two types of structure are considered: ultra-small wires of a degenerate semiconductor in the presence of a strong magnetic field and small-area resonant tunneling diodes. There are already some excellent review articles on universal conductance fluctuations and quantum interference effects in mesoscopic metallic and semiconducting structures in the linear transport regime. Therefore this subject is dealt with only briefly in the following section, which also highlights some recent work on the magnetoresistance of semiconducting n + GaAs wires in the high magnetic field regime. The paper then goes on to describe the manifestation of mesoscopic effects in small-area resonant tunneling devices, which are inherently non-linear conductors, exhibiting strong deviations from Ohm’s Law behavior.KeywordsHigh Magnetic FieldTunnel CurrentResonant TunnelingQuantum TransportMain ResonanceThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Published Version
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