Towards a cryogen-free table-top primary resistance standard
Paper i proceeding, 2016

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.

primary resistance metrology

quantum Hall effect

cryogenic current comparators

graphene

Författare

Tjbm Janssen

S. Rozhko

J. M. Williams

J. Ireland

S. P. Giblin

Hans He

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Samuel Lara Avila

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Sergey Kubatkin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

R. Yakimova

A.Y. Tzalenchuk

2016 Conference on Precision Electromagnetic Measurements (Cpem 2016)

Ämneskategorier

Elektroteknik och elektronik

ISBN

978-1-4673-9134-4

Mer information

Skapat

2017-10-08