Control of single-electron tunneling by surface acoustic waves

J. P. Pekola*, A. B. Zorin, M. A. Paalanen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)


We propose and use surface acoustic waves to control single-electron tunneling through an array of small tunnel junctions. The first experiments show that the wave traveling on the GaAs substrate couples to the islands of the array by modulating the potentials of their gates. We see cusps in the slope of the I-V curve at f=290 MHz around I=±ef. At 48 MHz and zero voltage biased to the ends we observe modulation of current by 3 pA around zero as a function of equal potential on the islands. Advantages of our method and problems, in particular the offset charge on GaAs, are discussed.

Original languageEnglish
Pages (from-to)11255-11258
Number of pages4
JournalPhysical Review B
Issue number15
Publication statusPublished - 15 Oct 1994
MoE publication typeA1 Journal article-refereed


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