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Bifurcation Diagrams and Poincar Maps of Current-oscillations in Superlattices
ZHANG Oi-yi, TIAN Oiang
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS
2003, 20 (1):
91-94.
The transportation behavior of electric-field domains in a n-doped weakly coupled GaAs/AlAs superlattices under dc+ac voltage bias is studied numerically within a discrete drift model.Fixing the ac driving frequency at the golden mean ratio,the quasiperiodicity、requency-locking and chaos of the current for different ac amplitude are analyzed.
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