Abstract
We report the performance of a quantum standard based on epitaxial graphene maintained in a 5 T table-top cryocooler system. The nu = 2 resistance plateau, with a value of RK-90/2, is used to scale to 1 k Omega using a binary cryogenic current comparator (BCCC) bridge. The preliminary uncertainties achieved with the BCCC are like those 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.
Year of Publication
2018
Group