Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Golod, T."'
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
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
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
Publikováno v:
Phys. Rev. B 100, 174511 (2019)
Abrikosov vortex contains magnetic field and circulating currents that decay at a short range $\lambda \sim 100$ nm. However, the vortex can induce a long range Josephson phase shift at distances $r\sim\mu$m$\gg\lambda$. The mechanism of this puzzlin
Externí odkaz:
http://arxiv.org/abs/1908.10699
Autor:
Prada, R. de Andres, Golod, T., Kapran, O. M., Borodianskyi, E. A., Bernhard, Ch., Krasnov, V. M.
Publikováno v:
Phys. Rev. B 99, 214510 (2019)
Complex oxides exhibit a variety of unusual physical properties, which can be used for designing novel electronic devices. Here we fabricate and study experimentally nano-scale Superconductor/ Ferromagnet/Superconductor junctions with the high-Tc cup
Externí odkaz:
http://arxiv.org/abs/1904.03951
Publikováno v:
Phys. Rev. Applied 11, 014062 (2019)
We propose a novel type of magnetic scanning probe sensor, based on a single planar Josephson junction with a magnetic barrier. The planar geometry together with high magnetic permeability of the barrier helps to focus flux in the junction and thus e
Externí odkaz:
http://arxiv.org/abs/1806.05582
We study temperature dependence of the critical current modulation Ic(H) for two types of planar Josephson junctions: a low-Tc Nb/CuNi/Nb and a high-Tc YBa2Cu3O7 bicrystal grain-boundary junction. At low T both junctions exhibit a conventional behavi
Externí odkaz:
http://arxiv.org/abs/1305.0755
Autor:
Golod, T., Rydh, A., Krasnov, V. M., Marozau, I., Uribe-Laverde, M. A., Satapathy, D. K., Wagner, Th., Bernhard, C.
Publikováno v:
Phys. Rev. B 87, 134520 (2013)
We study the perpendicular transport characteristics of small superconductor/ferromagnetic insulator/superconductor (YBa$_2$Cu$_3$O$_{7-x}$/LaMnO$_{3+\delta}$/YBa$_2$Cu$_3$O$_{7-x}$) tunnel junctions. At a large bias voltage $V\sim 1$ V we observe a
Externí odkaz:
http://arxiv.org/abs/1206.2053
Publikováno v:
Phys. Rev. B 84, 054516 (2011)
We perform a detailed comparison of magnetotunneling in conventional low-$T_c$ Nb/AlAlOx/Nb junctions with that in slightly overdoped Bi$_{2-y}$Pb$_y$Sr$_2$CaCu$_2$O$_{8+\delta}$ [Bi(Pb)-2212] intrinsic Josephson junctions and with microscopic calcul
Externí odkaz:
http://arxiv.org/abs/1105.1281