Towards a cryogen-free table-top primary resistance standard
Paper in proceedings, 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

Author

Tjbm Janssen

S. Rozhko

J. M. Williams

J. Ireland

S. P. Giblin

Hans He

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Samuel Lara Avila

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Sergey Kubatkin

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

R. Yakimova

A.Y. Tzalenchuk

2016 Conference on Precision Electromagnetic Measurements (Cpem 2016)

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

ISBN

978-1-4673-9134-4

More information

Created

10/8/2017