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Randolph Elmquist (Fed)

Randolph E. Elmquist directs the Quantum Conductance project at the National Institute of Standards and Technology. Working for the past 32 years in the field of electrical and quantum metrology, he has contributed to the experimental design and measurement of the electronic Kilogram and calculable impedance standards for the determination of the von Klitzing constant and alpha, the unitless fine structure constant. He leads the development of cryogenic current comparator systems, the quantum Hall effect, and graphene electronic devices for metrology. He graduated with the PhD. degree in Physics from the University of Virginia and is a member of the American Physical Society and a senior member of the Institute of Electrical and Electronics Engineers.

Publications

Graphene Quantum Hall Effect Parallel Resistance Arrays

Author(s)
Alireza Panna, I Fan Hu, Mattias Kruskopf, Dinesh K. Patel, Dean G. Jarrett, Chieh-I Liu, Shamith Payagala, Dipanjan Saha, David B. Newell, Chi-Te Liang, Randolph Elmquist, Albert Rigosi
As first recognized in 2010, epitaxial graphene on SiC(0001) provides a platform for quantized Hall resistance (QHR) metrology unmatched by other 2D structures
Created June 4, 2019, Updated June 15, 2021