This work presents precision measurements of quantized Hall array resistance devices
using superconducting, crossover-free and multiple interconnections as well as graphene …

In this paper, we show that quantum Hall resistance measurements using two terminals may
be as precise as four-terminal measurements when applying superconducting split contacts …

We demonstrate a device concept to fabricate resistance standards made of quantum Hall
series arrays by using p-type and n-type graphene. The ambipolar nature of graphene …

We fabricated and evaluated a 1 MΩ quantum Hall array device with GaAs/AlGaAs
substrates. This 1 MΩ quantized Hall resistance array device consists of 88 Hall bars, and its …

Series connection of four quantum Hall effect (QHE) devices based on epitaxial graphene
films was studied for realization of a quantum resistance standard with an up-scaled value …

Epitaxial graphene on silicon carbide is a promising material for the next generation of
quantum Hall resistance standards. Single Hall bars made of graphene have already …

We report the performance of a quantum Hall resistance standard based on epitaxial
graphene maintained in a 5-T tabletop cryocooler system. This quantum resistance standard …

As first recognized in 2010, epitaxial graphene on SiC (0001) provides a platform for
quantized Hall resistance (QHR) metrology unmatched by other two-dimensional structures …

It is theoretically possible to combine several Hall bars in arrays to define quantum
standards with perfectly quantized resistance values. We have thus developed and …

We report on a study concerning an on-chip quantum Hall effect (QHE) circuit made of two
series arrays of two Hall bars set parallel to each other. This array, the design of which is …