TITLE

Suppression of thermal broadening via Zener tunneling in narrow-gap semiconductor double-quantum-wire structures

AUTHOR(S)
Kyriakou, Ioanna; Jefferson, John H.; Lambert, Colin J.
PUB. DATE
June 2010
SOURCE
Applied Physics Letters;6/7/2010, Vol. 96 Issue 23, p232104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Zener interband tunneling through a potential profile induced by two top gates in the plane of the two-dimensional electron gas (2DEG) of a doped narrow-gap quantum well system is studied when the gates are biased differently. In contrast to the case of resonant transport through a potential profile created by a single gate these resonances exhibit only a weak dependence on temperature. We present results for a system based on an InSb quantum well and show that narrow resonances are maintained up to room temperature. Such narrow resonances may be exploited for voltage sensing at elevated temperatures.
ACCESSION #
51378953

 

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