Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Bevz, V. M."'
Autor:
Bevz, V. M., Mikhailov, M. Yu., Budinská, B., Lamb-Camarena, S., Shpilinska, S. O., Chumak, A. V., Urbánek, M., Arndt, M., Lang, W., Dobrovolskiy, O. V.
Publikováno v:
Phys. Rev. Appl., 19, 034098 (2023)
The maximal speed $v^\ast$ for magnetic flux quanta is determined by the energy relaxation of unpaired electrons and is thus essential for superconducting microstrip single-photon detectors (SMSPDs). However, the deduction of $v^\ast$ from the curren
Externí odkaz:
http://arxiv.org/abs/2302.05100
Autor:
Bezuglyj, A. I., Shklovskij, V. A., Budinska, B., Aichner, B., Bevz, V. M., Mikhailov, M. Yu., Vodolazov, D. Yu., Lang, W., Dobrovolskiy, O. V.
Publikováno v:
Phys. Rev. B 105 (2022) 214507
At sufficiently large transport currents $I_\mathrm{tr}$, a defect at the edge of a superconducting strip acts as a gate for the vortices entering into it. These vortices form a jet, which is narrow near the defect and expands due to the repulsion of
Externí odkaz:
http://arxiv.org/abs/2204.06467
Autor:
Dobrovolskiy, O. V., Gonzalez-Ruano, C., Lara, A., Sachser, R., Bevz, V. M., Shklovskij, V. A., Bezuglyj, A. I., Vovk, R. V., Huth, M., Aliev, F. G.
Almost any use of a superconductor implies a nonequilibrium state. Remarkably, the non-equilibrium states induced by a microwave stimulus and the dynamics of magnetic flux quanta (Abrikosov vortices) can give rise to strikingly contrary effects: A su
Externí odkaz:
http://arxiv.org/abs/2002.10343
Autor:
Dobrovolskiy, O. V., Vodolazov, D. Yu., Porrati, F., Sachser, R., Bevz, V. M., Mikhailov, M. Yu., Chumak, A. V., Huth, M.
Publikováno v:
Nature Communications 11, 3291 (2020)
The ultra-fast dynamics of superconducting vortices harbors rich physics generic to nonequilibrium collective systems. The phenomenon of flux-flow instability (FFI), however, prevents its exploration and sets practical limits for the use of vortices
Externí odkaz:
http://arxiv.org/abs/2002.08403
Guided and rectified motion of magnetic flux quanta are important effects governing the magneto-resistive response of nanostructured superconductors. While at low ac frequencies these effects are rather well understood, their manifestation at higher
Externí odkaz:
http://arxiv.org/abs/2001.06625
Publikováno v:
Phys. Rev. B 99, 174518 (2019)
Larkin and Ovchinnikov established that the viscous flow of magnetic flux quanta in current-biased superconductor films placed in a perpendicular magnetic field can lose stability due to a decrease in the vortex viscosity coefficient $\eta$ with incr
Externí odkaz:
http://arxiv.org/abs/1905.03564
Publikováno v:
Phys. Rev. Applied 11, 054064 (2019)
The dynamics of Abrikosov vortices in superconductors is usually limited to vortex velocities $v\simeq1$ km/s above which samples abruptly transit into the normal state. In the Larkin-Ovchinnikov framework, near the critical temperature this is becau
Externí odkaz:
http://arxiv.org/abs/1902.03761
Autor:
Dobrovolskiy, O. V., Sachser, R., Bunyaev, S. A., Navas, D., Bevz, V. M., Zelent, M., Smigaj, W., Rychly, J., Krawczyk, M., Vovk, R. V., Huth, M., Kakazei, G. N.
Publikováno v:
ACS Appl. Mater. Interfaces 11 (2019) 17654
Local modification of magnetic properties of nanoelements is a key to design future-generation magnonic devices, in which information is carried and processed via spin waves. One of the biggest challenges here is to fabricate simple and miniature pha
Externí odkaz:
http://arxiv.org/abs/1902.03758
Autor:
Dobrovolskiy, O. V., Sachser, R., Bevz, V. M., Lara, A., Aliev, F. G., Shklovskij, V. A., Bezuglyj, A. I., Vovk, R. V., Huth, M.
In the mixed state of type II superconductors penetrated by an external magnetic field in the form of a lattice of Abrikosov vortices the dc resistance is known to increase with increasing velocity of the vortex lattice. Accordingly, vortex pinning s
Externí odkaz:
http://arxiv.org/abs/1805.10882
Autor:
Dobrovolskiy, O. V., Bevz, V. M., Mikhailov, M. Yu., Yuzephovich, O. I., Shklovskij, V. A., Vovk, R. V., Tsindlekht, M. I., Sachser, R., Huth, M.
Publikováno v:
Nature Communications 9 (2018) 4927
Most of superconductors in a magnetic field are penetrated by a lattice of quantized flux vortices. In the presence of a transport current causing the vortices to cross sample edges, emission of electromagnetic waves is expected due to the continuity
Externí odkaz:
http://arxiv.org/abs/1805.10875