Abstract
The dc resistance primary standard is currently realized by quantized Hall resistance (QHR) on GaAs/AlGaAs heterostructure substrates. In spite of the fact that the resistance is determined by only fundamental physical constants, it is not very straightforward to operate this standard because a very low temperature and an intense magnetic field are required. Since the quantum Hall effect in graphene at room temperature was reported in recent years, the quantum resistance standard with graphene which is relatively easy to operate, is expected to become possible. In the present paper, a dc resistance measurement traceability system is described, and challenges and current status to apply graphene to a new dc resistance standard are discussed.
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