Controllable room-temperature metallic quantum dot

L. Bitton, A. Frydman

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We demonstrate a technique for fabricating a controllable metallic dot coupled to metallic electrodes. This techniques enables one to explore the current-voltage characteristics while varying the distance between the dot and the leads. The fabrication technique combines atomic force microscope nanoscribing and nanomanipulation as well as electrochemical methods and enables very fine dot-lead coupling control. The measured current-voltage curves exhibit stable single-charge phenomena such as Coulomb blockade and Coulomb staircase which are clearly observed even at room temperature. This technique may provide an opportunity to study single electron charging effects in regimes that are currently unaccessible.

Original languageEnglish
Article number113113
JournalApplied Physics Letters
Volume88
Issue number11
DOIs
StatePublished - 2006

Funding

The authors acknowledge useful discussions with R. Berkovits and S. Meltzer and technical help from O. Chasid. This research was supported by the Israeli Science Foundation (Grant No. 249/05).

FundersFunder number
Israeli Science Foundation249/05

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