Enhancement of Coulomb blockade in semiconductor tunnel junctions
作者:
Kazuo Nakazato,
Haroon Ahmed,
期刊:
Applied Physics Letters
(AIP Available online 1995)
卷期:
Volume 66,
issue 23
页码: 3170-3172
ISSN:0003-6951
年代: 1995
DOI:10.1063/1.113712
出版商: AIP
数据来源: AIP
摘要:
The Coulomb blockade region was measured directly in an experimental single‐electron memory device. The device was constructed with multiple‐tunnel junctions (MTJ) formed by making a sidegated constriction in &dgr;‐doped GaAs. The Coulomb blockade region is defined by electron transfer rates of less than 10 electrons per second. At low values of sidegate voltages in the MTJ an enhancement of the Coulomb blockade is observed and explained by the formation of a nonuniform electrostatic potential in the semiconductor tunnel junctions. ©1995 American Institute of Physics.
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