Towards a cryogen-free table-top primary resistance standard

T J B M Janssen,S P Giblin,A Tzalenchuk,H He,S Lara-Avila,R Yakimova,S Kubatkin,J M Williams,J Ireland,S Rozhko

doi:10.1109/cpem.2016.7540654

Towards a cryogen-free table-top primary resistance standard

T J B M Janssen, S P Giblin + Show 8 more

https://doi.org/10.1109/cpem.2016.7540654

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Publication Date: Jul 1, 2016

Citations: 9

Affiliation: National Physical Laboratory, Royal Holloway University of London, Chalmers University of Technology, Nanosc (Sweden), Linköping University

#Metrological Accuracy #Primary Resistance + Show 8 more

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Abstract

We demonstrate quantum Hall resistance measurements with metrological accuracy in a small cryogen-free system operating at a temperature of around 3.8 K and magnetic fields below 5 T. We use this system to investigate the optimisation of graphene/SiC devices for maximum breakdown current. In addition we report the first characterisation of a cryogen-free cryogenic current comparator which enables entirely cryogen-free primary resistance metrology.

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