Traditionally, magnonics has been a room-temperature research discipline. However, the current great interest in hybrid systems for quantum computing requires the use of magnonic conduits at low temperatures and in environments of superconducting circuits, triggering the development of cryogenic magnonics. In this domain, ferromagnet/superconductor (F/S) hybrid structures offer unique possibilities for the excitation, manipulation and detection of spin waves, which are beyond the reach of traditional magnonic approaches. This research direction is aimed at the exploration of the physics of spin waves in F/S heterostructures, their interaction with magneticl flux quanta (Abrokosov vortices), and the examination of the potential of S/F hybrids for novel magnonic functionalities.

Publications

• Nonreciprocal magnon fluxonics upon ferromagnet/superconductor hybrids
  O. V. Dobrovolskiy and A. V. Chumak
  J. Magn. Magnet. Mater. 543, 168633 (2022)
• Roadmap on spin-wave computing
  A. V. Chumak,.. O. V. Dobrovolskiy,.. J. W. Kłos,.. M. Urbánek, et al. 
  IEEE Trans. Magnet 58,  0800172 (2022)
• The 2021 Magnonics Roadmap (Perspective Article)
  A. Barman,.. A. V. Chumak,.. O.V. Dobrovolskiy, B. Budinska, et al.
  J. Phys. Cond. Matter 33, 413001 (2021)
• Temperature dependence of spin pinning and spin-wave dispersion in nanoscopic ferromagnetic waveguides
  B. Heinz, Q. Wang, R. Verba, V. I. Vasyuchka, M. Kewenig, P. Pirro, M. Schneider, T. Meyer, B. Lägel, C. Dubs, T. Brächer, O. V. Dobrovolskiy, and A. V. Chumak
  Ukr. J. Phys. 65, 1094 (2020)
• Magnon-Fluxon interaction in a ferromagnet/superconductor heterostructure
  O. V. Dobrovolskiy, R. Sachser, T. Brächer, T. Fischer, V. V. Kruglyak, R. V. Vovk, V. A. Shklovskij, M. Huth, B. Hillebrands, and A. V. Chumak,
  Nat. Phys. 15, 477 (2019)
• Abrikosov fluxonics in washboard nanolandscapes
  O. V. Dobrovolskiy, 
  Physica C 533, 80 (2017), Review
• Mobile fluxons as coherent probes of periodic pinning in superconductors
  O. V. Dobrovolskiy, M. Huth, V. A. Shklovskij, and R. V. Vovk,
  Scientific Reports 7, 13740 (2017)