We explore phonon-mediated quantum transport through electronic noise characterization of a commercial CMOS transistor. The device behaves as a single electron transistor thanks to a single impurity atom in the channel. A low noise cryogenic CMOS transimpedance amplifier is exploited to perform low-frequency noise characterization down to the single electron, single donor and single phonon regime simultaneously, not otherwise visible through standard stability diagrams. Single electron tunneling as well as phonon-mediated features emerges in rms-noise measurements. Phonons are emitted at high frequency by generation-recombination phenomena by the impurity atom. The phonon decay is correlated to a Lorentzian 1/f^2 noise at low frequency.
Observation of single phonon-mediated quantum transport in a silicon single-electron CMOS single-atom transistor by RMS noise analysis / B. Stefano, M.L.V. Tagliaferri, D. Tamascelli, S. Sebastiano, B. Roberto, O. Paolo, F. Giorgio, P. Enrico, E. Prati. - In: APPLIED PHYSICS EXPRESS. - ISSN 1882-0778. - 13:12(2020 Dec), pp. 125001.125001-1-125001.125001-5. [10.35848/1882-0786/abc7cf]
Observation of single phonon-mediated quantum transport in a silicon single-electron CMOS single-atom transistor by RMS noise analysis
D. Tamascelli;E. Prati
Ultimo
2020
Abstract
We explore phonon-mediated quantum transport through electronic noise characterization of a commercial CMOS transistor. The device behaves as a single electron transistor thanks to a single impurity atom in the channel. A low noise cryogenic CMOS transimpedance amplifier is exploited to perform low-frequency noise characterization down to the single electron, single donor and single phonon regime simultaneously, not otherwise visible through standard stability diagrams. Single electron tunneling as well as phonon-mediated features emerges in rms-noise measurements. Phonons are emitted at high frequency by generation-recombination phenomena by the impurity atom. The phonon decay is correlated to a Lorentzian 1/f^2 noise at low frequency.File | Dimensione | Formato | |
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