Characterization of a Differential Radio-Frequency Single- Electron Transistor
نویسندگان
چکیده
We have fabricated and characterized a new type of electrometer that couples two parallel single-electron transistors (SETs) to a radio-frequency tank circuit for use as a differential RF-SET. We demonstrate operation of this device in summing, differential, and single-SET operation modes, and use it to measure a Coulomb staircase from a differential single Cooper-pair box. In differential mode, the device is sensitive to uncorrelated input signals while screening out correlated ones.
منابع مشابه
Radio Frequency-Single Electron Transistor: A Fast and Sensitive Electrometer Analogous to the Radio Frequency-Superconducting Quantum Interference Device
We describe a new mode of operation of the single electron transistor (SET). The so-called RF-SET (radio frequency-SET) is a dual of the RF-SQUID (radio frequency-superconducting quantum interference device). It has been operated at frequencies above 100 MHz with a very high charge sensitivity (1.2 3 10e/ÏHz). The large bandwidth, combined with a high sensitivity, will enable studies of the dyn...
متن کاملConduction coefficient modeling in bilayer graphene based on schottky transistors
Nowadays carbon nanoparticles are applied on the island of single electron transistor and Nano-transistors. The basis of single electron devices (SEDs) is controllable single electron transfer between small conducting islands. Based on the important points in quantum mechanics, when a wave passes through several spatial regions with different boundaries, the wave function of the first region di...
متن کاملSensitivity of a micromechanical displacement detector based on the radio - frequency single - electron transistor
We investigate the tunneling shot noise limits on the sensitivity of a microme-chanical displacement detector based on a metal junction, radio-frequency single-electron transistor (rf-SET). In contrast with the charge sensitivity of the rf-SET electrometer, the displacement sensitivity improves with increasing gate voltage bias and, with a suitably optimized rf-SET, displacement sensitivities o...
متن کاملOperation of single-walled carbon nanotube as a radio-frequency single-electron transistor
We demonstrate the operation of a radio-frequency single-electron transistor (RF-SET) using single-wall carbon nanotubes (SWNTs). The device is embedded in a resonant tank circuit and operates in reflection mode at temperatures as high as 5 K. Both frequency domain and time domain results are presented. With a gate modulation frequency of 1 MHz, a charge sensitivity of ∼4.78 × 10−4e/Hz−1/2 is o...
متن کاملNumerical analysis of radio-frequency single-electron transistor operation
We have analyzed numerically the response and noise-limited charge sensitivity of a radio-frequency singleelectron transistor ~RF-SET! in a nonsuperconducting state using the orthodox theory. In particular, we have studied the performance dependence on the quality factor Q of the tank circuit for Q both below and above the value corresponding to the impedance matching between the coaxial cable ...
متن کامل