Measurements of single electron transistor devices combined with a CCC: progress report

Author

De Wilde, Yannick ; Gay, Frédéric ; Piquemal, François P M ; Genevès, Gérard

Author_Institution

Lab. Central des Ind. Electr., Bur. Nat. de Metrol., Fontenay-aux-Roses, France

Volume

50

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

231

Lastpage

234

Abstract

The BNM-LCIE is developing a current standard based on single electron transistor (SET) pumps. This paper gives an overview of the experimental set-up. It includes the circuit details, in particular the combination of miniature filters and homemade lines giving high attenuation in a wide frequency band, and a cryogenic current comparator (CCC) with winding ratio of 10000:1 for high accuracy amplification of the current. The results of the testing of the circuit and CCC are presented, together with the first measurements of the current through a SET carried out by means of a CCC. Coulomb blockade oscillations with an amplitude less than 200 fA have been observed with a signal to noise ratio approaching 100 and at bias voltages as small as a 100 nV

Keywords

Coulomb blockade; current comparators; electric current measurement; measurement standards; single electron transistors; 100 nV; 200 fA; Coulomb blockade oscillations; SET pumps; cryogenic current comparator; high accuracy current amplification; high attenuation; microwave filters; miniature filters; quantum current standard; single electron transistor devices; wide frequency band; winding ratio; Attenuation; Circuit testing; Cryogenics; Current measurement; Filters; Frequency; Signal to noise ratio; Single electron transistors; Standards development; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.918109

Filename

918109