116 citations · 503 across the 10 of their papers we have counts for
10 papers
Control of thin NbN film superconducting properties by ScN buffer layer
N. V. Porokhov, M. A. Dryazgov, A. R. Shevchenko +7
This work investigates the effect of a scandium nitride buffer layer on the superconducting properties of niobium nitride thin films. The use of a ScN buffer layer significantly im…
Practical way to increase nonlinearity of kinetic inductance of superconductor
Yu. P. Korneeva, M. A. Dryazgov, I. V. Trofimov +7
This work demonstrates that depositing a thin layer of Mo (5-15 nm) onto a 10 nm thick NbN strip leads to a significant increase in the nonlinearity of the kinetic inductance …
Different single photon response of wide and narrow superconducting MoSi strips
Yu. Korneeva, N. Manova, I. Florya +4
The photon count rate of superconducting single photon detectors made of MoSi films shaped as a m-wide strip and a 115 nm-wide meander stripline is studied experimentally as…
Optical single photon detection in micron-scaled NbN bridges
Y. Korneeva, D. Yu. Vodolazov, A. V. Semenov +6
We demonstrate experimentally that single photon detection can be achieved in micron-wide NbN bridges, with widths ranging from 0.53 m to 5.15 m and for photon-wavelengths fr…
Non-bolometric bottleneck in electron-phonon relaxation in ultra-thin WSi film
M. Sidorova, A. Kozorezov, A. Semenov +6
We developed the model of the internal phonon bottleneck to describe the energy exchange between the acoustically soft ultrathin metal film and acoustically rigid substrate. Discri…
Coherent dynamics and decoherence in a superconducting weak link
J. T. Peltonen, Z. H. Peng, Yu. P. Korneeva +6
We demonstrate coherent dynamics of quantized magnetic fluxes in a superconducting loop with a weak link - a nanobridge patterned from the same thin NbN film as the loop. The bridg…
Vortex assisted mechanism of photon counting in superconducting nanowire single photon detector revealed by external magnetic field
D. Yu. Vodolazov, Yu. P. Korneeva, A. V. Semenov +2
We use external magnetic field to probe the detection mechanism of superconducting nanowire single photon detector. We argue that the hot belt model (which assumes partial suppress…
Superconducting single-photon detector made of MoSi film
Yu. P. Korneeva, M. Yu. Mikhailov, Yu. P. Pershin +8
We fabricated and characterised nanowire superconducting single-photon detectors (SSPDs) made of 4 nm thick amorphous MoSi films. At 1.7 K the best devices exhibit a de…
Coherent Flux Tunneling Through NbN Nanowires
J. T. Peltonen, O. V. Astafiev, Yu. P. Korneeva +8
We demonstrate evidence of coherent magnetic flux tunneling through superconducting nanowires patterned in a thin highly disordered NbN film. The phenomenon is revealed as a superp…
Effect of the wire width on the intrinsic detection efficiency of superconducting-nanowire single-photon detectors
R. Lusche, A. Semenov, H. -W. Huebers +7
Thorough spectral study of the intrinsic single-photon detection efficiency in superconducting TaN and NbN nanowires with different widths shows that the experimental cut-off in th…