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Towards a quantum capacitance standard.

Giblin, S P; Kleinschmidt, P; Zorin, A*; Lotkhov, S* (2001) Towards a quantum capacitance standard. In: BEMC 2001- 10th British Electromagnetic Measurement Conference, 6-8 November 2001, Harrogate, UK.

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DC characteristics of a 3-junction resistive electron pump (R-pump) have been measured. Large modulation of the current as a function of gate voltage has been seen, and evidence of the suppression of co-tunneling by the resistors observed. The temperature dependence of a tunable 1 pF co-axial crogenic capacitor is also reported. The capacitor can be tuned such that its value at 4 K is within 100 parts per million (PPM) of 1 pF. The R-pump and cryogenic capacitor are important elements in a future quantum standard of capacitance.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keywords: Single electron tunneling, electron pump, cryogenic capacitor
Subjects: Electromagnetics
Electromagnetics > Electrical Quantum Standards
Last Modified: 02 Feb 2018 13:17
URI: http://eprintspublications.npl.co.uk/id/eprint/2160

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