Mixing with the radiofrequency single-electron transistor

Details Mixing with the radiofrequency single-electron transistor Mixing with the radiofrequency single-electron transistor

2005-01-26

arxiv.org/abs/cond-mat/0501623v1

Appl. Phys. Lett. 86, 173112 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Submitted to APL september 2004

Scientific paper

10.1063/1.1923188

By configuring a radio-frequency single-electron transistor as a mixer, we demonstrate a unique implementation of this device, that achieves good charge sensitivity with large bandwidth about a tunable center frequency. In our implementation we achieve a measurement bandwidth of 16 MHz, with a tunable center frequency from 0 to 1.2 GHz, demonstrated with the transistor operating at 300 mK. Ultimately this device is limited in center frequency by the RC time of the transistor's center island, which for our device is ~ 1.6 GHz, close to the measured value. The measurement bandwidth is determined by the quality factor of the readout tank circuit.

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