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arXiv · 0711.4936

Highly sensitive and broadband carbon nanotube radio-frequency single-electron transistor

S. E. S. Andresen·F. Wu·R. Danneau·D. Gunnarsson·P. J. Hakonen
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Abstract

We have investigated radio-frequency single-electron transistor (RF-SET) operation of single-walled carbon nanotube quantum dots in the strong tunneling regime. At 4.2 K and carrier frequency 754.2 MHz, we reach a charge sensitivity of 2.3e-6 e/Hz^(1/2) over a bandwidth of 85 MHz. Our results indicate a gain-bandwidth product of 3.7e13 Hz^(3/2)/e, which is by one order of magnitude better than for typical RF-SETs.

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S. E. S. Andresen, F. Wu, R. Danneau, D. Gunnarsson, P. J. Hakonen. 2008-04-16. Highly sensitive and broadband carbon nanotube radio-frequency single-electron transistor. https://doi.org/10.1063/1.2968123

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