Cyclostationary shot noise in mesoscopic measurements

Details Cyclostationary shot noise in mesoscopic measurements Cyclostationary shot noise in mesoscopic measurements

2004-12-09

arxiv.org/abs/cond-mat/0412228v1

J. Appl. Phys. 96, 5927 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 2 figures

Scientific paper

10.1063/1.1803103

We discuss theoretically a setup where a time-dependent current consisting of a DC bias and two sinusoidal harmonics is driven through a sample. If the sample exhibits current-dependent shot noise, the down-converted noise power spectrum varies depending on the local-oscillator phase of the mixer. The theory of this phase-dependent noise is applied to discuss the measurement of the radio-frequency single-electron transistor. We also show that this effect can be used to measure the shot noise accurately even in nonlinear high-impedance samples.

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