Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/1868

Negative differential resistance and the transition to current self-oscillation in GaAs/AlAs superlattices

Authors Wang, Jiannong
Sun, Bao-Quan
Wang, Xiang-Rong
Wang, HL
Issue Date 1999
Source Solid state communications , v. 112, (7), 1999, p. 371-374
Summary We investigate the transition from static to dynamic electric field domains in a doped GaAs/AlAs superlattice. We show that a transverse magnetic field and/or the temperature can induce current self-oscillations. This observation can be attributed to the negative differential resistance effect. Transverse magnetic field and the temperature can increase the negative differential resistance of a doped superlattice. A large negative differential resistance can lead to an unstable electric field domain in a certain range of de bias.
Subjects
ISSN 0038-1098
Rights Solid State Communications © copyright 1999 Elsevier. The Journal's web site is located at http://www.sciencedirect.com/
Language English
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