An Ultrasensitive Radio-Frequency Single-Electron Transistor Working Up To 4.2 K

JOURNAL OF APPLIED PHYSICS, no. 11 (2006)

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Abstract

We present the measurement of a radio-frequency single-electron transistor that displays a very high charge sensitivity of 1.9 mu e/root Hz at 4.2 K. At 40 mK, the charge sensitivity is 0.9 and 1.0 mu e/root Hz in the superconducting and normal state, respectively. The sensitivity was measured as a function of radio frequency amplitude at...More

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