40 citations · 161 across the 10 of their papers we have counts for
16 papers · 1 filter
Geometric pi Josephson junction in d-wave superconducting thin films
A. Gumann, C. Iniotakis, N. Schopohl
A novel way to realize a pi Josephson junction is proposed, based on a weak link in an unconventional d-wave superconductor with appropriately chosen boundary geometry. The critica…
Effect of Surface Andreev Bound States on the Bean-Livingston Barrier in d-Wave Superconductors
C. Iniotakis, T. Dahm, N. Schopohl
We study the influence of surface Andreev bound states in d-wave superconductors on the Bean-Livingston surface barrier for entry of a vortex line into a strongly type-II supercond…
Microscopic Theory of Superconductor-Constriction-Superconductor Josephson Junctions in a Magnetic Field
A. Gumann, T. Dahm, N. Schopohl
Self-consistent solutions of microscopic Eilenberger theory are presented for a two-dimensional model of a superconducting channel with a geometric constriction. Magnetic fields, e…
Two tone response of radiofrequency signals using the voltage output of a Superconducting Quantum Interference Filter
P. Caputo, J. Tomes, J. Oppenlaender +4
In the presence of weak time harmonic electromagnetic fields, Superconducting Quantum Interference Filters (SQIFs) show the typical behavior of non linear mixers. The SQIFs are man…
Vortex core shrinkage in a two gap superconductor: application to MgB2
S. Graser, A. Gumann, T. Dahm +1
As a model for the vortex core in MgB2 we study a two band model with a clean sigma band and a dirty pi band. We present calculations of the vortex core size in both bands as a fun…
Quadratic Mixing of Radio Frequency Signals using Superconducting Quantum Interference Filters
P. Caputo, J. Tomes, J. Oppenlaender +4
The authors demonstrate quadratic mixing of weak time harmonic electromagnetic fields applied to Superconducting Quantum Interference Filters, manufactured from high-$T_{\mathrm{c}…