Zobrazeno 1 - 10
of 739
pro vyhledávání: '"Krasnov, V. P."'
Autor:
Golod, T., Krasnov, V. M.
Publikováno v:
Nature Communications 13, 3658 (2022)
Diode is one of basic electronic components. It has a nonreciprocal current response, associated with a broken space/time reversal symmetry. Here we demonstrate prototypes of superconducting diodes operational at zero magnetic field. They are based o
Externí odkaz:
http://arxiv.org/abs/2205.12196
Publikováno v:
Phys. Rev. Applied 17, 064032 (2022)
We study arrays of planar Nb Josephson junctions with contacts to intermediate electrodes, which allow measurements of individual junctions and, thus, provide an insight into intricate array dynamics. We observe a robust phase-locking of arrays, desp
Externí odkaz:
http://arxiv.org/abs/2201.11453
Publikováno v:
Phys. Rev. Appl. 16, L061001 (2021)
Low power efficiency is one of the main problems of THz sources, colloquially known as the THz gap. In this work we present prototypes of THz devices based on whisker-crystals of a hightemperature superconductor Bi2Sr2CaCu2O8+d with a record high rad
Externí odkaz:
http://arxiv.org/abs/2109.00976
Publikováno v:
Phys. Rev. B 103, 214507 (2021)
We study Josephson junctions between a multi-band iron-pnictide Ba1-xNaxFe2As2 and conventional s-wave superconductors Nb and Cu/Nb bilayer. We observe that junctions with a Cu interlayer exhibit much larger IcRn, despite a weaker proximity-induced s
Externí odkaz:
http://arxiv.org/abs/2102.10972
Crossover between short and long range proximity effects in SFS junctions with Ni-based ferromagnets
Publikováno v:
Phys. Rev. B 103, 094509 (2021)
We study Superconductor/Ferromagnet/Superconductor junctions with CuNi, PtNi, or Ni interlayers. Remarkably, we observe that supercurrents through Ni can be significantly larger than through diluted alloys. The phenomenon is attributed to the dirtine
Externí odkaz:
http://arxiv.org/abs/2102.10927
Autor:
Krasnov, V. P.1 volodkrasnov@gmail.com, Zhukovskyi, O. V.2, Sukhovetska, S. V.1, Orlov, О. О.2,3, Melnyk-Shamrai, V. V.1, Kurbet, T. V.1,2
Publikováno v:
Nuclear Physics & Atomic Energy. 2024, Vol. 25 Issue 2, p149-156. 8p.
Autor:
Galin, M. A., Rudau, F., Borodianskyi, E. A., Kurin, V. V., Koelle, D., Kleiner, R., Krasnov, V. M., Klushin, A. M.
Publikováno v:
Phys. Rev. Applied 14, 024051 (2020)
Phase-locking of oscillators leads to superradiant amplification of the emission power. This is particularly important for development of THz sources, which suffer from low emission efficacy. In this work we study large Josephson junction arrays cont
Externí odkaz:
http://arxiv.org/abs/2004.06623
Autor:
Krasnov, V. M.
Publikováno v:
Phys. Rev. B 101, 144507 (2020)
A Josephson junction can be subjected to a local, strongly inhomogeneous magnetic field in various experimental situations. Here this problem is analyzed analytically and numerically. A modified sine-Gordon type equation in the presence of time-depen
Externí odkaz:
http://arxiv.org/abs/2002.01715
Akademický článek
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Publikováno v:
Phys. Rev. Research 2, 013167 (2020)
We study experimentally nanoscale Josephson junctions and Josephson spin-valves containing strong Ni ferromagnets. We observe that in contrast to junctions, spin valves with the same geometry exhibit anomalous Ic(H) patterns with two peaks separated
Externí odkaz:
http://arxiv.org/abs/1912.08587