1. S. P. Bommanaboyena, C. Müller, M. Jarošová, K. Wolk, S. Telkamp, P. Zeng, F. Křížek, K. Olejník, D. Scheffler, K. Beranová, S. Banerjee, M. Ledinský, H. Reichlová, T. Jungwirth, L. Horák, D. Kriegner
    Single-crystalline CrSb(0001) thin films grown by dc magnetron co-sputtering
    submitted to Phys. Rev. Mater.
  2. M. Surynek, J. Zubáč, K. Olejník, A. Farkaš, F. Křížek, L. Nádvorník, P. Kubascik, F. Trojanek, R. P. Campion, V. Novák, T. Jungwirth, P. Nemec
    Picosecond transfer from short-term to long-term memory in analog antiferromagnetic memory device
    Newton 1 (2025) 100034(1)- 100034(11).
  3. J. Zubáč, Miloslav Surýnek, K. Olejník, A. Farkaš, F. Křížek, L. Nádvorník, Petr Kubaščík, Z. Kašpar, František Trojánek, Richard P. Campion, V. Novák, Petr Němec, T. Jungwirth
    Investigation of Opto-magnetic Memory Effects in Antiferromagnetic CuMnAs Using Ultrafast Heat Dynamics and Quench Switching
    Advanced Electronic Materials 11 (2025) 2400835(1)-2400835(9).
  4. S. P. Bommanaboyena, C. Müller, M. Jarošová, K. Wolk, S. Telkamp, P. Zeng, F. Křížek, T. Uchimura, A. Baďura, K. Olejník, D. Scheffler, K. Beranová, S. Banerjee, M. Ledinský, H. Reichlová, T. Jungwirth, D. Kriegner
    Single-crystalline CrSb(0001) thin films grown by dc magnetron co-sputtering
    Physical Review Materials 9 (2025) 064402(1)-064402(9).
  5. M. Drimmer, S. Telkamp, F. L. Fischer, I. C. Rodrigues, C. Todt, F. Křížek, D. Kriegner, C. Müller, W. Wegscheider, Y. Chu
    The effect of niobium thin film structure on losses in superconducting circuits
    The performance of superconducting microwave circuits is strongly influenced by the material properties of the superconducting film and substrate. While progress has been made in understanding the importance of surface preparation and the effect of surface oxides, the complex effect of superconductor film structure on microwave losses is not yet fully understood. In this study, we investigate the microwave properties of niobium resonators with different crystalline properties and related surface topographies. We analyze a series of magnetron sputtered films in which the Nb crystal orientation and surface topography are changed by varying the substrate temperatures between room temperature and 975 K. The lowest-loss resonators that we measure have quality factors of over one million at single-photon powers, among the best ever recorded using the Nb on sapphire platform. We observe the highest quality factors in films grown at an intermediate temperature regime of the growth series (550 K) where the films display both preferential ordering of the crystal domains and low surface roughness. Furthermore, we analyze the temperature-dependent behavior of our resonators to learn about how the quasiparticle density in the Nb film is affected by the niobium crystal structure and the presence of grain boundaries. Our results stress the connection between the crystal structure of superconducting films and the loss mechanisms suffered by the resonators and demonstrate that even a moderate change in temperature during thin film deposition can significantly affect the resulting quality factors.
  6. M. Hinderling, S.C. ten Kate, D.Z. Haxell, M. Coraiola, S. Paredes, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, D. Sabonis, F. Nichele
    Flip-Chip-Based Fast Inductive Parity Readout of a Planar Superconducting Island
    PRX Quantum 5 (2024) 030337(1)-030337(15).
  7. M. Coraiola, D.Z. Haxell, D. Sabonis, M. Hinderling, S.C. ten Kate, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, F. Nichele
    Spin-Degeneracy Breaking and Parity Transitions in Three-Terminal Josephson Junctions
    Physical Review X  14 (2024) 031024(1)-031024(9).
  8. M. Coraiola, A. E. Svetogorov, D. Z. Haxell, D. Sabonis, M. Hinderling, S. C. Ten Kate, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, J. C. Cuevas, W. Belzig, F. Nichele
    Flux-tunable Josephson diode effect in a hybrid four-terminal Josephson junction
    ACS Nano 18 (2024) 9221-9231.
  9. S. Reimers, O. Gomonay, O. J. Amin, F. Křížek, L. X. Barton, Y. Lytvynenko, S. F. Poole, V. Novák, R. P. Campion, F. Maccherozzi, G. Carbone, A. Björling, Y. Niu, E. Golias, D. Kriegner, J. Sinova, M. Kläui, M. Jourdan, S. S. Dhesi, K. W. Edmonds, P. Wadley
    Magnetic domain engineering in antiferromagnetic Cu⁢Mn⁢As and Mn2Au
    Physical Review Applied 21 (2024) 064030(1)-064030(11).
  10. K. Olejník, Z. Kašpar, J. Zubáč, S. Telkamp, A. Farkaš, D. Kriegner, K. Výborný, J. Železný, Z. Šobáň, P. Zeng, T. Jungwirth, V. Novák, F. Křížek
    Quench switching of Mn2As
    submitted to Phys. Rev. B
  11. S. Telkamp, T. Antonelli, C. Todt, M. Hinderling, M. Coraiola, D. Haxell, Sofieke C. ten Kate, D. Sabonis, P. Zeng, R. Schott, E. Cheah, Ch. Reichl, F. Nichele, F. Křížek, W. Wegscheider
    Development of a Nb-based semiconductor-superconductor hybrid platform
    accepted in Advanced Electronic Materials
  12. A. Baďura, Warlley H. Campos, Venkata K. Bharadwaj, Ismaïla Kounta, Lisa Michez, Matthieu Petit, Javier Rial, Miina Leiviskä, Vincent Baltz, F. Křížek, D. Kriegner, J. Zemen, Sjoerd Telkamp, Sebastian Sailler, Michaela Lammel, Rodrigo Jaeschke Ubiergo, Anna Birk Hellenes, Rafael González-Hernández, J. Sinova, T. Jungwirth, Sebastian T. B. Goennenwein, L. Šmejkal, H. Reichlová
    Observation of the anomalous Nernst effect in altermagnetic candidate Mn5Si3
    submitted to Nat. Phys.
  13. P. Kubaščík, A. Farkaš, K. Olejník, T. Troha, M. Hývl, F. Křížek, D. C. Joshi, T. Ostatnický, J. Jechumtál, E. Schmoranzerová, R. P. Campion, J. Zázvorka, V. Novák, P. Kužel, T. Jungwirth, P. Němec, L. Nádvorník
    Terahertz probing of anisotropic conductivity and morphology of CuMnAs epitaxial thin films
    Advanced Physics Research 3 (2024) 2300075(1)-2300075(11).
  14. Z. Lei, E. Cheah, F. Křížek, R. Schott, T. Bähler, P. Märki, W. Wegscheider, M. Shayegan, T. Ihn, K. Ensslin
    Gate-defined two-dimensional hole and electron systems in an undoped InSb quantum well
    Physical Review Research 5 (2023) 013117(1)-013117(11).
  15. D. Z. Haxell, E. Cheah, F. Křížek, R. Schott, M. F. Ritter, M. Hinderling, W. Belzig, Ch. Bruder, W. Wegscheider, H. Riel, F. Nichele
    Measurements of Phase Dynamics in Planar Josephson Junctions and SQUIDs
    Physical Review Letters 130 (2023) 087002(1)-087002(6).
  16. M. Hinderling, D. Sabonis, S. Paredes, D.Z. Haxell, M. Coraiola, S.C. ten Kate, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, F. Nichele
    Flip-Chip-Based Microwave Spectroscopy of Andreev Bound States in a Planar Josephson Junction
    Physical Review Applied 19 (2023) 054026(1)-054026(18).
  17. D. Z. Haxell, M. Coraiola, M. Hinderling, S. C. ten Kate, D. Sabonis, A. E. Svetogorov, W. Belzig, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, F. Nichele
    Demonstration of the Nonlocal Josephson Effect in Andreev Molecules
    Nano Letters 23 (2023) 7532(1)-7532(7).
  18. Marco Coraiola, D. Z. Haxell, D. Sabonis, H. Weisbrich, A. E. Svetogorov, M. Hinderling, S. C. ten Kate, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, J. C. Cuevas, W. Belzig, F. Nichele
    Phase-engineering the Andreev band structure of a three-terminal Josephson junction
    Nature Communications 14 (2023) 6784(1)-6784(7).
  19. E. Cheah, D. Z. Haxell, R. Schott, P. Zeng, E. Paysen, S. C. ten Kate, M. Coraiola, M. Landstetter, A. B. Zadeh, A. Trampert, M. Sousa, H. Riel, F. Nichele, W. Wegscheider, F. Křížek
    Control over epitaxy and the role of the InAs/Al interface in hybrid two-dimensional electron gas systems
    Physical Review Materials 7 (2023) 073403(1)-073403(11).
  20. D. Z. Haxell, M. Coraiola, D. Sabonis, M. Hinderling, S. C ten Kate, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, W. Belzig, J. C. Cuevas, F. Nichele
    Microwave-induced conductance replicas in hybrid Josephson junctions without Floquet—Andreev states
    Nature Communications 14 (2023) 14:6798(1)-14:6798(8).
  21. D. Z. Haxell, M. Coraiola, D. Sabonis, M. Hinderling, S. C .ten Kate, E. Cheah, F. Křížek, R. Schott, W. Wegscheider, F. Nichele
    Zeeman-and Orbital-Driven Phase Shifts in Planar Josephson Junctions
    ACS Nano 17 (2023) 18139-18147.
  22. C. Todt, S. Telkamp, F. Křížek, Ch. Reichl, M. Gabureac, R. Schott, E. Cheah, P. Zeng, T. Weber, A. Müller, Ch. Vockenhuber, M. Bahrami Panah, W. Wegscheider
    Development of Nb-GaAs based superconductor-semiconductor hybrid platform by combining in situ dc magnetron sputtering and molecular beam epitaxy
    Physical Review Materials 7 (2023) 076201(1)-076201(12).
  23. O. J. Amin, S. F. Poole, S. Reimers, L. X. Barton, F. Maccherozzi, S. S. Dhesi, V. Novák, F. Křížek, J. S. Chauhan, R. P. Campion, A. W. Rushforth, T. Jungwirth, O. A. Tretiakov, K. W. Edmonds, P. Wadley
    Antiferromagnetic half-skyrmions electrically generated and controlled at room temperature
    Nature Nanotechnology 18 (2023) 849-853.
  24. S. Reimers, D. Kriegner, O. Gomonay, D. Carbone, F. Křížek, V. Novák, R. P. Campion, F Maccherozzi, Alexander Bjorling, O. J. Amin, L. X. Barton, S. F. Poole, K. A. Omari, J. Michalicka, O. Man, J. Sinova, T. Jungwirth, P. Wadley, S. S. Dhesi, K. W. Edmonds
    Defect-driven antiferromagnetic domain walls in CuMnAs films
    Nature Communications 13 (2022) 724(1)-724(7).
  25. F. Křížek, S. Reimers, Z. Kašpar, A. Marmodoro, J. Michalička, O. Man, A. Edstrom, O. J. Amin, K. W. Edmonds, R. P. Campion, F. Maccherozzi, S. S. Dnes, J. Zubáč, J. Železný, K. Výborný, K. Olejník, V. Novák, J. Rusz, J. C. Idrobo, P. Wadley, T. Jungwirth
    Atomically sharp domain walls in an antiferromagnet
    Science Advances 8 (2022) eabn3535(1)-eabn3535(10).
  26. J. Zubáč, Z. Kašpar, F. Křížek, T. Förster, R. P. Campion, V. Novák, T. Jungwirth, K. Olejník
    Hysteretic effects and magnetotransport of electrically switched CuMnAs
    Physical Review B 104 (2021) 184424(1)-184424(7).
  27. Z. Kašpar, M. Surýnek, J. Zubáč, F. Křížek, V. Novák, R. P. Campion, M. S. Wörnle, P. Gambardella, X. Martí, P. Němec, K. W. Edmonds, S. Reimers, O. J. Amin, F. Maccherozzi, S. S. Dhesi, P. Wadley, J. Wunderlich, T. Jungwirth
    Quenching of an antiferromagnet into high resistivity states using electrical or ultrashort optical pulses
    Nature Electronics 4 (2021) 30-37.
  28. F. Křížek, Z. Kašpar, A. Vetushka, D. Kriegner, E. M. Fiordaliso, J. Michalička, O. Man, J. Zubáč, M. Brajer, V. A. Hills, K. W. Edmonds, P. Wadley, R. P. Campion, K. Olejník, T. Jungwirth, V. Novák
    Molecular beam epitaxy of CuMnAs
    Physical Review Materials 4 (2020) 014409(1)-014409(9).
  29. D. J. Carrad, M. Bjergfelt, T. Kanne, M. Aagesen, F. Křížek, E. M. Fiordaliso, E. Johnson, J. Nygård, T. Sand Jespersen
    Shadow Epitaxy for In Situ Growth of Generic Semiconductor/Superconductor Hybrids
    Advanced Materials 9 (2020) 1908411 1-1908411 9.
  30. S. A. Khan*, Ch. Lampadaris, A. Cui, L. Stampfer, Y. Liu, S. J. Pauka, M. E. Cachaza, E. M. Fiordaliso, Jung-Hyun Kang, S. Korneychuk, T. Mutas, J. E. Sestoft, F. Křížek, R. Tanta, M. C. Cassidy, T. S. Jespersen, P. Krogstrup*
    Highly Transparent Gatable Superconducting Shadow Junctions
    ACS Nano 4 (2020) 1-11.
  31. P. Aseev, A. Fursina, F. Boekhout, F. Křížek, J. E. Sestoft, F. Borsoi, S. Heedt, G. Wang, L. Binci, S. Martí-Sánchez, T. Swoboda, R. Koops, E. Uccelli, J. Arbiol, P. Krogstrup, L. P. Kouwenhoven, P. Caroff
    Selectivity Map for Molecular Beam Epitaxy of Advanced III–V Quantum Nanowire Networks
    Nano Letters 19 (1) (2019) 218-227.
  32. F. Křížek, J. E. Sestoft, P. Aseev, S. Marti-Sanchez, S. Vaitiekėnas, L. Casparis, S. A. Khan, Y. Liu, T. Stankevič, A. M. Whiticar, A. Fursina, F. Boekhout, R. Koops, E. Uccelli, L. P. Kouwenhoven, Ch. M. Marcus, J. Arbiol, P. Krogstrup
    Field effect enhancement in buffered quantum nanowire networks
    Physical Review Letters 2 (2018) 093401(1)-093401(8).
  33. S. Vaitiekėnas, A. M. Whiticar, M.-T. Deng, F. Křížek, J. E. Sestoft, C. J. Palmstrøm, S. Marti-Sanchez, J. Arbiol, P. Krogstrup, L. Casparis, C. M. Marcus
    Selective-Area-Grown Semiconductor-Superconductor Hybrids: A Basis for Topological Networks
    Physical Review Letters 121 (2018) 1-5.
  34. Jung-Hyun Kang, F. Křížek, M. Zaluska-Kotur, P. Krogstrup, P. Kacman, H. Beidenkop, H. Shtrikman
    Au-Assisted Substrate-Faceting for Inclined Nanowire Growth
    Nano Letters 18 (7) (2018) 4115-4122.
  35. F. Křížek, T. Kanne, D. Razmadze, E. Johnson, J. Nygård, Ch. M. Marcus, P. Krogstrup
    Growth of InAs Wurtzite Nanocrosses from Hexagonal and Cubic Basis
    Nano Letters 17 (10) (2017) 6090-6096.
  36. Z. Hájková, A. Fejfar, M. Ledinský, V. Píč, F. Křížek, D. Šulc, Z. Nováček, P. Wertheimer
    Introduce Scanning Probe Microscopy into Education
    Chemické listy 110 (2016) 153-159.