38 citations · 54 across the 4 of their papers we have counts for
4 papers
Traceable precision pA direct current measurements with the ULCA
Hansjörg Scherer, Gerd-Dietmar Willenberg, Dietmar Drung +2
A standard method for picoammeter calibrations is the capacitor charging technique, which allows generating traceable currents in the sub-nA range. However, its accuracy is limited…
Traceable precision generation and measurement of pA direct currents
Hansjörg Scherer, Gerd-Dietmar Willenberg, Dietmar Drung +2
We present the comparison of results from the generation and the measurement of direct currents in the pA range, performed with traceable state-of-the-art methods at highest accura…
Precision quantization of Hall resistance in transferred graphene
Mirosław Woszczyna, Miriam Friedemann, Martin Götz +4
We show that quantum resistance standards made of transferred graphene reach the uncertainty of semiconductor devices, the current reference system in metrology. A large graphene d…
Ground-state characterization of Nb charge-phase Josephson qubits
Hermann Zangerle, Jens Könemann, Brigitte Mackrodt +5
We present investigations of Josephson charge-phase qubits inductively coupled to a radio-frequency driven tank-circuit enabling the readout of the states by measuring the Josephso…