Progress Towards the Electron Counting Capacitance Standard at PTB

Author

Scherer, Hansjörg ; Lotkhov, Sergey V. ; Willenberg, Gerd-Dietmar ; Camarota, Benedetta

Author_Institution

Phys.-Tech. Bundesanstalt, Braunschweig

Volume

58

Issue

4

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

997

Lastpage

1002

Abstract

We report on the progress and new results in the setup of the electron counting capacitance standard (ECCS) at Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany. Considerable progress has been made in the operation of the single-electron circuit and in the incorporation of a cryogenic capacitor into the millikelvin refrigerator setup. The single-electron tunneling (SET) circuit comprised a five-junction, single-electron R-pump that showed an electron retention time of more than 600 s, and the circuit was successfully used for the deterministic shuttle transfer of charge packets consisting of few electrons. In addition, the cryogenic capacitor was tested, and its performance was found to be suitable for a high-precision ECCS experiment.

Keywords

capacitance measurement; capacitors; charge exchange; cryogenic electronics; measurement standards; single electron devices; tunnelling; Physikalisch-Technische Bundesanstalt; charge packets shuttle transfer; cryogenic capacitor; electron counting capacitance standard; electron retention time; millikelvin refrigerator setup; single-electron circuit; single-electron tunneling circuit; Capacitance; charge transfer devices; cryogenic electronics; tunnel effect; units (measurement);

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2008.2006959

Filename

4689389