An ultra sensitive radio frequency single electron transistor working up to 4.2 K

Henrik Brenning; Per Delsing; Sergey Kafanov; Sergey Kubatkin; Tim Duty

arxiv: cond-mat/0602518 · v1 · pith:U2PXGBAAnew · submitted 2006-02-22 · ❄️ cond-mat.mes-hall · cond-mat.supr-con

An ultra sensitive radio frequency single electron transistor working up to 4.2 K

Henrik Brenning , Sergey Kafanov , Tim Duty , Sergey Kubatkin , Per Delsing This is my paper

classification ❄️ cond-mat.mes-hall cond-mat.supr-con

keywords frequencyradiosensitivitychargeelectronmicrolectronssinglesqrt

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We present the fabrication and measurement of a radio frequency single electron transistor (rf-SET), that displays a very high charge sensitivity of 1.9 microlectrons/sqrt(Hz) at 4.2 K. At 40 mK, the charge sensitivity is 0.9 and 1.0 microlectrons/sqrt(Hz) in the superconducting and normal state respectively. The sensitivity was measured as a function of radio frequency amplitude at three different temperatures: 40 mK, 1.8 K and 4.2 K.

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An ultra sensitive radio frequency single electron transistor working up to 4.2 K

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