TITLE

Dynamic-gate operation in nanoelectronic amplifiers due to reduced screening

AUTHOR(S)
Worschech, L.; Hartmann, D.; Forchel, A.
PUB. DATE
November 2008
SOURCE
Applied Physics Letters;11/17/2008, Vol. 93 Issue 20, p203105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Semiconductor nanostructures in shape of a Y were patterned lithographically in a two-dimensional electron gas. One of the branches was pinched off, so it can act as a gate for the other branch. Such nanoelectronic amplifiers show switching voltages smaller than the thermal limit and tunable bistability. The authors related their observations to a reduced-screening induced dynamic capacitance, which can exceed the contribution from the geometric capacitance.
ACCESSION #
35514103

 

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