51 citations · 136 across the 10 of their papers we have counts for
10 papers
Influence of mechanical deformations on the performance of a coaxial shield for a cryogenic current comparator
Nicolas Marsic, Wolfgang F. O. Müller, Volker Tympel +10
This paper studies the impact of mechanical deformations on the performance of a coaxial-type cryogenic current comparator (CCC). Such deformations may become a concern as the size…
Numerical analysis of a folded superconducting coaxial shield for cryogenic current comparators
Nicolas Marsic, Wolfgang F. O. Müller, Herbert De Gersem +6
This paper presents a new shield configuration for cryogenic current comparators (CCCs), namely the folded coaxial geometry. An analytical model describing its shielding performanc…
Reflection-enhanced gain in traveling-wave parametric amplifiers
S. Kern, P. Neilinger, E. Iľichev +12
The operating principle of traveling-wave parametric amplifiers is typically understood in terms of the standard coupled mode theory, which describes the evolution of forward propa…
Study of microwave resonances induced by bias lines of shunted Josephson junctions
Ugur Yilmaz, Sasan Razmkhah, Romain Collot +3
Bias lines routed over a ground plane naturally form microstrip lines associated with the presence of a capacitance. This can lead to unwanted resonances when coupled to Josephson…
Performance analysis of an optically pumped magnetometer in Earth's magnetic field
G. Oelsner, V. Schultze, R. IJsselsteijn +1
We experimentally investigate the influence of the orientation of optically pumped magnetometers in Earth's magnetic field. We focus our analysis to an operational mode that promis…
Nanowire single-photon detectors made of atomic layer-deposited niobium nitride
Emanuel Knehr, Artem Kuzmin, Mario Ziegler +5
We demonstrate and characterize first superconducting nanowire single-photon detectors (SNSPDs) made from atomic layer-deposited (ALD) NbN layers. To assess the suitability of thes…
Sources of heading error in optically pumped magnetometers operated at Earth's magnetic field
G. Oelsner, V. Schultze, R. IJsselsteijn +2
When optically pumped magnetometers are aimed for the use in Earth's magnetic field, the orientation of the sensor to the field direction is of special importance to achieve accura…
Nearly quantum limited nanoSQUIDs based on cross-type Nb/AlOx/Nb junctions
M. Schmelz, V. Zakosarenko, T. Schönau +4
We report on the development of nearly quantum limited SQUIDs with miniature pickup loop dimensions. The implemented high quality and low capacitance cross-type Nb/AlOx/Nb Josephso…
Commensurability effects in overlap Josephson junctions coupled with a magnetic dots array
S. N. Vdovichev, S. A. Gusev, Yu. N. Nozdrin +5
Experimental observation of the strong influence of an array of ferromagnetic nanodots on the critical current of a short overlap Josephson junction is reported. Pronounced commens…
Superconductivity controlled by the magnetic state of ferromagnetic nanoparticles
A. A. Fraerman, B. A. Gribkov, S. A. Gusev +7
Novel hybrid superconductor/ferromagnetic particles structures are presented. Arrays of Co submicron particles were fabricated on overlap, edge type Josephson junctions and on a na…