TITLE

Space-charge buildup and bistability in resonant-tunneling double-barrier structures

AUTHOR(S)
Sheard, F. W.; Toombs, G. A.
PUB. DATE
April 1988
SOURCE
Applied Physics Letters;4/11/1988, Vol. 52 Issue 15, p1228
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using the sequential theory of resonant tunneling, the dc current-voltage characteristic of a double-barrier structure is calculated, taking into account the effect of space charge in the quantum well. A region of current bistability is found over a voltage range which is determined by the maximum space charge and the capacitance of the structure. These parameters are directly related to the periodicity of magnetoquantum oscillations in the current.
ACCESSION #
9826465

 

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