A Table-Top Graphene Quantized Hall Standard

Published

July 8, 2018

Author(s)

Albert F. Rigosi, Alireza R. Panna, Shamith U. Payagala, George R. Jones Jr., Marlin E. Kraft, Mattias Kruskopf, Bi Y. Wu, Hsin Y. Lee, Yanfei Yang, Dean G. Jarrett, Randolph E. Elmquist, David B. Newell

Abstract

We report the performance of a quantum standard based on epitaxial graphene maintained in a 5 T table-top cryocooler system. The ν = 2 resistance plateau, with a value of RK-90/2, is used to scale to 1 kΩ, allowing comparisons of the performance of a binary cryogenic current comparator (BCCC) bridge and a room-temperature direct current comparator (DCC). The preliminary uncertainties achieved with the DCC are about 1 part in 108, while the BCCC uncertainty is like that obtained in state-of-the-art measurements using GaAs-based devices. This quantum standard requires no liquid He and can operate continuously, allowing year-round accessibility to traceable resistance measurements.

Proceedings Title

IEEE Proceedings

Conference Dates

July 8-14, 2018

Conference Location

Paris

Conference Title

Conference on Precision Electromagnetic Measurements (CPEM) 2018

Pub Type

Conferences

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Keywords

quantized Hall resistance, epitaxial graphene, binary cryogenic current comparator, direct current comparator, standard resistor

Citation

Rigosi, A. , Panna, A. , Payagala, S. , Jones, G. , Kraft, M. , Kruskopf, M. , Wu, B. , Lee, H. , Yang, Y. , Jarrett, D. , Elmquist, R. and Newell, D. (2018), A Table-Top Graphene Quantized Hall Standard, IEEE Proceedings, Paris, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925071 (Accessed September 8, 2024)