Voltage oscillations in an array of tunnel junctions controlled by a scanning tunneling microscope gate at room temperature

We observe that a current through an array of tunnel junctions can be controlled by a gate at room temperature. Metal islands were formed on an insulating substrate and liquid crystal molecules were placed between these islands. Electrodes were placed 5 mm apart on the substrate and a bias was appli...

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Bibliographic Details
Published in:Applied physics letters 1994-05, Vol.64 (21), p.2803-2805
Main Authors: Nejoh, H., Aono, M.
Format: Article
Language:English
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Summary:We observe that a current through an array of tunnel junctions can be controlled by a gate at room temperature. Metal islands were formed on an insulating substrate and liquid crystal molecules were placed between these islands. Electrodes were placed 5 mm apart on the substrate and a bias was applied between them. A scanning tunneling microscope (STM) tip which acts as a gate was supported on molecules which act as the central electrodes. When this two-dimensional tunnel junction array was current biased, the tunnel current flow across this array could be controlled by the gate voltage at room temperature.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.111430