Zobrazeno 1 - 10
of 930
pro vyhledávání: '"Dobrovolskiy, A."'
Advancements in the fabrication of superconducting 3D nanostructures, along with the creation of artificial pinning sites, pave the way to novel applications and enhancement of nanosensors, bolometers, and quantum interferometers. The dynamics of mag
Externí odkaz:
http://arxiv.org/abs/2407.20780
Autor:
Karrer, Max, Aichner, Bernd, Wurster, Katja, Magén, César, Schmid, Christoph, Hutt, Robin, Budinská, Barbora, Dobrovolskiy, Oleksandr V., Kleiner, Reinhold, Lang, Wolfgang, Goldobin, Edward, Koelle, Dieter
Publikováno v:
Physical Review Applied 22, 014043 (2024)
Controlled engineering of vortex pinning sites in copper-oxide superconductors is a critical issue in manufacturing devices based on magnetic flux quanta. To address this, we employed a focused He-ion beam (He-FIB) to irradiate thin YBa$_2$Cu$_3$O$_{
Externí odkaz:
http://arxiv.org/abs/2404.05382
Autor:
Serha, Rostyslav O., Voronov, Andrey A., Schmoll, David, Verba, Roman, Levchenko, Khrystyna O., Koraltan, Sabri, Davídková, Kristýna, Budinska, Barbora, Wang, Qi, Dobrovolskiy, Oleksandr V., Urbánek, Michal, Lindner, Morris, Reimann, Timmy, Dubs, Carsten, Gonzalez-Ballestero, Carlos, Abert, Claas, Suess, Dieter, Bozhko, Dmytro A., Knauer, Sebastian, Chumak, Andrii V.
Quantum magnonics investigates the quantum-mechanical properties of magnons such as quantum coherence or entanglement for solid-state quantum information technologies at the nanoscale. The most promising material for quantum magnonics is the ferrimag
Externí odkaz:
http://arxiv.org/abs/2402.12112
In planar superconductor thin films, the places of nucleation and arrangements of moving vortices are determined by structural defects. However, various applications of superconductors require reconfigurable steering of fluxons, which is hard to real
Externí odkaz:
http://arxiv.org/abs/2401.00712
Autor:
Dobrovolskiy, Oleksandr V.
Publikováno v:
Encyclopedia of Condensed Matter Physics, vol. 2 (2024), chap. 9, pp. 735-754
The last decade has been marked by great interest in the dynamics of vortices moving at high ($>$10\,km/s) velocities in superconductors. However, the flux-flow instability (FFI) prevents its exploration and sets practical limits for the use of vorti
Externí odkaz:
http://arxiv.org/abs/2311.08281
The dynamics of magnetic flux quanta (Abrikosov vortices) determine the resistive response of superconductors. In pinning-free planar thin films, the penetration and motion of vortices are controlled by edge defects, leading to such arrangements as v
Externí odkaz:
http://arxiv.org/abs/2311.02946
Autor:
Strauß, M., Shayeghi, A., Mauser, M. F. X., Geyer, P., Kostersitz, T., Salapa, J., Dobrovolskiy, O., Daly, S., Commandeur, J., Hua, Y., Köhler, V., Mayor, M., Benserhir, J., Bruschini, C., Charbon, E., Castaneda, M., Gevers, M., Gourgues, R., Kalhor, N., Fognini, A., Arndt, M.
Publikováno v:
Sci. Adv. 9, eadj2801 (2023)
The analysis of proteins in the gas phase benefits from detectors that exhibit high efficiency and precise spatial resolution. Although modern secondary electron multipliers already address numerous analytical requirements, new methods are desired fo
Externí odkaz:
http://arxiv.org/abs/2306.14571
Autor:
Höflich, Katja, Hobler, Gerhard, Allen, Frances I., Wirtz, Tom, Rius, Gemma, McElwee-White, Lisa, Krasheninnikov, Arkady V., Schmidt, Matthias, Utke, Ivo, Klingner, Nico, Osenberg, Markus, Córdoba, Rosa, Djurabekova, Flyura, Manke, Ingo, Moll, Philip, Manoccio, Mariachiara, De Teresa, José Marıa, Bischoff, Lothar, Michler, Johann, De Castro, Olivier, Delobbe, Anne, Dunne, Peter, Dobrovolskiy, Oleksandr V., Frese, Natalie, Gölzhäuser, Armin, Mazarov, Paul, Koelle, Dieter, Möller, Wolfhard, Pérez-Murano, Francesc, Philipp, Patrick, Vollnhals, Florian, Hlawacek, Gregor
The focused ion beam (FIB) is a powerful tool for the fabrication, modification and characterization of materials down to the nanoscale. Starting with the gallium FIB, which was originally intended for photomask repair in the semiconductor industry,
Externí odkaz:
http://arxiv.org/abs/2305.19631
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:
Knauer, Sebastian, Davídková, Kristýna, Schmoll, David, Serha, Rostyslav O., Voronov, Andrey, Wang, Qi, Verba, Roman, Dobrovolskiy, Oleksandr V., Lindner, Morris, Reimann, Timmy, Dubs, Carsten, Urbánek, Michal, Chumak, Andrii V.
Performing propagating spin-wave spectroscopy of thin films at millikelvin temperatures is the next step towards the realisation of large-scale integrated magnonic circuits for quantum applications. Here we demonstrate spin-wave propagation in a $100
Externí odkaz:
http://arxiv.org/abs/2212.02257