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An experimental device of quantum Hall array resistance standards (QHARS) with a nominal value close to 10 kΩ on the i = 2 plateau have been developed on a GaAs/AlGaAs hetero-substrate. This device consists of just 266 Hall bar elements that are connected by triple connection technique. Its nominal value has only 0.034 2 ppm differences from the integer value of 104. This array device clearly shows...
An experimental device of quantum Hall array resistance standards with a nominal value close to 10 kOmega on the i = 2 plateau and a parallel array of two Hall bars have been developed. The latter array clearly shows quantized Hall resistance of a quarter value of the von Klitzing constant, RK on the i = 2 plateau.
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