Quantum resistance standards with double 2DEG
2002
A new generation of quantum Hall array resistance standards (QHARS) designed from GaAs/AlGaAs heterostructures with double two-dimensional electron gases (2DEGs) has been developed. First results of measurements carried out on a single Hall bar (R/sub K//4) and 50 Hall bars placed in parallel by triple connections (R/sub K//200) are presented.
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