Progress in Graphene Quantum Hall Array Resistance Standards
ORAL
Abstract
Epitaxial graphene (EG) on silicon carbide is the superior material for quantum Hall array resistance standard (QHARS) because both the synthesis of EG and fabrication of quantum Hall array based on EG is scalable. I will discuss the recent progress in development of QHARS at NIST, including the synthesis of high-quality EG at centimeter scale, the fabrication of quantum Hall array consisting of hundreds of graphene Hall bars, as well as the precision measurement of graphene QHARS from 100 Ω to 1 GΩ.
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Presenters
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Yanfei Yang
- National Institute of Standards and Technology (NIST)