224 citations · 5.5k across the 176 of their papers we have counts for
6 papers · 2 filters
Andreev bound states at a cuprate grain boundary junction: A lower bound for the upper critical field
M. Wagenknecht, D. Koelle, R. Kleiner +6
We investigate in-plane quasiparticle tunneling across thin film grain boundary junctions (GBJs) of the electron-doped cuprate LaCeCuO in magnetic fields up to $B…
Josephson junctions with negative second harmonic in the current-phase relation: properties of novel varphi-junctions
E. Goldobin, D. Koelle, R. Kleiner +1
Several recent experiments revealed a change of the sign of the first harmonic in the current-phase relation of Josephson junctions (JJ) based on novel superconductors, e.g., d-wav…
Imaging of Thermal Domains in ultrathin NbN films for Hot Electron Bolometers
D. Doenitz, R. Kleiner, D. Koelle +2
We present low-temperature scanning electron microscopy (LTSEM) investigations of superconducting microbridges made from ultrathin NbN films as used for hot electron bolometers. LT…
A Numerical Treatment of the Rf SQUID: II. Noise Temperature
Reinhold Kleiner, Dieter Koelle, John Clarke
We investigate rf SQUIDs (Superconducting QUantum Interference Devices), coupled to a resonant input circuit, a readout tank circuit and a preamplifier, by numerically solving the…
A Numerical Treatment of the Rf SQUID: I. General Properties and Noise Energy
Reinhold Kleiner, Dieter Koelle, John Clarke
We investigate the characteristics and noise performance of rf Superconducting Quantum Interference Devices (SQUIDs) by solving the corresponding Langevin equations numerically and…
Ferromagnetic 0-pi Josephson junctions
M. Weides, H. Kohlstedt, R. Waser +5
We present a study on low- superconductor-insulator-ferromagnet-superconductor (SIFS) Josephson junctions. SIFS junctions have gained considerable interest in recent years bec…