1. M. Kempa, V. Bovtun, D. Repček, J. Buršík, S. Kamba
    Weak-field FMR and magnetization near the collinear to conical ferrimagnetic phase transition in the U-type hexaferrite Sr4CoZnFe36O60 ceramics
    Phase Transitions 97 (2024) 763-771.
  2. G. Bastien, D. Repček, A. Eliáš, A. Kancko, Q. Courtade, T. Haidamak, M. Savinov, V. Bovtun, M. Kempa, K. Carva, M. Vališka, P. Doležal, M. Kratochvílová, S. A. Barnett, P. Proschek, J. Prokleška, C. Kadlec, P. Kužel, R. H. Colman, S. Kamba
    A Frustrated Antipolar Phase Analogous to Classical Spin Liquids
    Advanced Materials 36 (2024) 2410282(1)-2410282(10).
  3. A. Maia, M. Kempa, V. Bovtun, R. Vilarinho, C. Kadlec, J. A. Moreira, A. A. Belik, P. Proschek, S. Kamba
    Two displacive ferroelectric phase transitions in multiferroic quadruple perovskite BiMn7O12
    Physical Review B 109 (2024) 134111(1)-134111(10).
  4. M. Kempa, V. Bovtun, D. Repček, J. Buršík, C. Kadlec, S. Kamba
    Microwave magnetic excitations in U-type hexaferrite Sr4CoZnFe36O60 ceramics
    Journal of Applied Physics 136 (2024) 073904(1)-073904(14).
  5. V. Bovtun, M. Kempa, D. Repček, M. Savinov, J. Buršík, O. Heczko, J. Drahokoupil, S. Kamba
    Broadband magnetic and dielectric properties of U-type hexaferrite Sr4CoZnFe36O60
    Journal of Magnetism and Magnetic Materials 589 (2024) 171533(1)-171533(12).
  6. V. Laguta, V. Bovtun, M. Kempa, O. Laguta, P. Neugebauer, M. Šimenas, J. Banys, S. Kamba
    Enhancement of microwave fields in pulse EPR of quantum paraelectrics
    Applied Physics Letters 123 (2023) 214001(1)-214001(6).
  7. D. Nužnyj, J. Petzelt, V. Bovtun, M. Kempa, D. Repček, A. Tkach, P. M. Vilarinho, S. Kamba
    High-frequency dielectric properties of K1-xLixTaO3 ceramics compared to crystals
    Journal of the European Ceramic Society 43 (2023) 5241-5247.
  8. A. Maia, C. Kadlec, M. Savinov, R. Vilarinho, J. A. Moreira, V. Bovtun, M. Kempa, M. Míšek, J. Kaštil, A. Prokhorov, J. Maňák, A. A. Belik, S. Kamba
    Can the ferroelectric soft mode trigger an antiferromagnetic phase transition?
    Journal of the European Ceramic Society 43 (2023) 2479-2487.
  9. D. Nužnyj, V. Bovtun, E. Buixaderas, J. Petzelt, M. Savinov, M. Kempa, M. Paściak, I. Rafalovskyi, V. Chelod Paingad, P. Kužel, S. Kamba, D. Repček, A. Pashkin, V. A. Trepakov, Z. Trybuła
    Unusual dynamics of the ferroelectric phase transition in K1-xLixTaO3 crystals
    Physical Review B 105 (2022) 184103(1)-184103(17).
  10. V. Bovtun, D. Nužnyj, M. Kempa, T. Ostapčuk, V. Skoromets, J. Suchanicz, P. Czaja, J. Petzelt, S. Kamba
    Ferroelectric soft mode and microwave dielectric relaxation in BaTiO3-PbMg1/3Nb2/3O3 ceramics
    Physical Review Materials 5 (2021) 014404(1)-014404(13).
  11. D. Nužnyj, V. Bovtun, M. Savinov, M. Kempa, J. Petzelt, O. Kaman, M. Klementová, J. Kuličková, Z. Jirák
    Synthesis and broadband dielectric-infrared spectroscopy of La1-xSrxMnO3@BaTiO3 nanocomposite
    Materials Research Bulletin 144 (2021) 111459(1)-111459(14).
  12. J. Petzelt, V. Bovtun. D. Nuzhnyy, M. Kempa, M. Savinov, M. Paściak, S. Kamba, G. Canu, V. Buscaglia
    Broadband Dielectric, Terahertz, and Infrared Spectroscopy of BaTiO3-BaZrO3 Solid Solution: From Proper Ferroelectric over Diffuse and Relaxor Ferroelectrics and Dipolar Glass to Normal Dielectric
    physica status solidi (b) 2100259 (2021) 2100259(1)-2100259(15).
  13. P. Lawniczak, J. Petzelt, V. Bovtun, M. Savinov, M. Kempa, D. Nužnyj, A. Pawlowski
    Proton dynamics in superprotonic Rb3H(SeO4)2 crystal by broadband dielectric spectroscopy
    Journal of Physics: Condensed Matter 32 (2020) 465401(1)-465401(7).
  14. V. Laguta, M. Kempa, V. Bovtun, J. Buršík, K. Zhai, Y. Sun, S. Kamba
    Magnetoelectric coupling in multiferroic Z-type hexaferrite revealed by electric-field-modulated magnetic resonance studies
    Journal of Materials Science 55 (2020) 7624-7633.
  15. D. Nužnyj, J. Petzelt, V. Bovtun, M. Savinov, P. Bednyakov, M. Kempa, O. Kaman, P. Levinský, J. Hejtmánek, Z. Jirák
    Broadband dielectric spectroscopy of La0.65Sr0.35MnO3@TiO2 core–shell nanocomposites
    Journal of Physics: Condensed Matter 32 (2020) 415701(1)-415701(12).
  16. H. Němec, C. Kadlec, V. Goian, F. Borodavka, V. Železný, M. Kempa, K. Knížek, J. Hejtmánek, J. Buršík, M. Soroka
    Metal-insulator transition in (Pr,Y)0.7Ca0.3CoO3 in the far-infrared spectral region
    Physical Review B 102 (2020) 195105(1)-195105(13).
  17. E. Buixaderas, M. Kempa, Š. Svirskas, C. Kadlec, V. Bovtun, M. Savinov, M. Paściak, J. Dec
    Dynamics of mesoscopic polarization in uniaxial tetragonal tungsten-bronze (SrxBa1-x)Nb2O6
    Physical Review B 100 (2019) 184113(1)-184113(11).
  18. L. Dubovská, L. Fekete, V. Bovtun, M. Kempa, A. Taylor, Y. Liu, O Bou Matar, A. Talbi, V. Mortet
    Love-wave devices with continuous and discrete nanocrystalline diamond coating for biosensing applications
    Sensors and Actuators A: Physical 298 (2019) 111584 (1)-111584 (6).
  19. V. Bovtun, M. Kempa, D. Nužnyj, J. Petzelt, O. Borisova, O. Machulianskyi, Y. Yakymenko
    Microwave absorbing and shielding properties of inhomogeneous conductors and high-loss dielectrics
    Ferroelectrics 532 (2018) 57-66.
  20. E. Buixaderas, M. Kempa, V. Bovtun, C. Kadlec, M. Savinov, F. Borodavka, P. Vaněk, G. Steciuk, L. Palatinus, J. Dec
    Multiple polarization mechanisms across the ferroelectric phase transition of the tetragonal tungsten-bronze Sr0.35Ba0.69Nb2O6.04
    Physical Review Materials 2 (2018) 124402(1)-124402(12).
  21. V. Bovtun, J. Petzelt, M. Kempa, D. Nužnyj, M. Savinov, S. Kamba, S.M.M. Yee, D.A. Crandles
    Wide range dielectric and infrared spectroscopy of (Nb+In) co-doped rutile ceramics
    Physical Review Materials 2 (2018) 075002(1)-075002(10).
  22. V. Bovtun, M. Kempa, D. Nužnyj, J. Petzelt, O. Borisova, O. Machulianskyi, Y. Yakymenko
    Composition dependent microwave properties of dielectric-conductor nanocomposites
    Phase Transitions 91 (2018) 1027-1035.
  23. D. Nužnyj, J. Petzelt, V. Bovtun, M. Kempa, S. Kamba, J. Hlinka, B. Hehlen
    Infrared, terahertz, and microwave spectroscopy of the soft and central modes in Pb(Mg1/3Nb2/3)O3
    Physical Review B 96 (2017) 174113(1)-174113(13).
  24. E. Buixaderas, C. Kadlec, M. Kempa, V. Bovtun, M. Savinov, P. Bednyakov, J. Hlinka, J. Dec
    Fast polarization mechanisms in the uniaxial tungsten-bronze relaxor strontium barium niobate SBN-81
    Scientific Reports 7 (2017) 18034(1)-18034(11).
  25. S. Kamba, D. Nužnyj, M. Savinov, P. Tolédano, V. Laguta, P. Brázda, L. Palatinus, F. Kadlec, F. Borodavka, C. Kadlec, P. Bednyakov, V. Bovtun, M. Kempa, D. Kriegner, J. Drahokopil, J. Kroupa, J. Prokleška, K. Chapagain, B. Dabrowski, V. Goian
    Unusual ferroelectric and magnetic phases in multiferroic 2 H-BaMnO3 ceramics
    Physical Review B 95 (2017) 174103(1)-174103(13).
  26. V. Goian, E. Langenberg, N. Marcano, V. Bovtun, l. Maurel, M. Kempa, T. Prokscha, J. Kroupa, P.A. Algarabel, J.A. Pardo, S. Kamba
    Spin-phonon coupling in epitaxial Sr0.6Ba0.4MnO3 thin films
    Physical Review B 95 (2017) 075126(1)-075126(7).
  27. D. Nužnyj, J. Petzelt, V. Bovtun, T. Ostapčuk, M. Savinov, M. Kempa, P. Bednyakov, L. Fernández-Garciá, T. Rodriguez-Suarez, J. L. Menendéz
    Broadband dielectric spectroscopy of standard and core-shell BaTiO3-NiO ceramic composites compared to the BaTiO3 ceramics
    Ferroelectrics 500 (2016) 1-19.
  28. P. Ondrejkovič, M. Kempa, M. Savinov, P. Bednyakov, J. Kulda, P. Bourges, J. Dec, J. Hlinka
    Electric-field influence on the neutron diffuse scattering near the ferroelectric transition of Sr0.61Ba0.39Nb2O6
    Phase Transitions 89 (2016) 808-815.
  29. E. Buixaderas, V. Bovtun, M. Kempa, D. Nužnyj, M. Savinov, P. Vaněk, I. Gregora, B. Malic
    Lattice dynamics and domain wall oscillations of morphotropic Pb(Zr,Ti)O3 ceramics
    Physical Review B 94 (2016) 054315(1)-054315(10).
  30. S. Kamba, E. Simon, V. Skoromets, V. Bovtun, M. Kempa, M. Savinov, J. Koruza, B. Malič
    Broad-band dielectric response of 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3 piezoceramics: soft and central mode behaviour
    Phase Transitions 89 (2016) 785-793.
  31. V. Goian, F. Kadlec, C. Kadlec, B. Dabrowski, S. Kolesnik, O. Chmaissem, D. Nužnyj, M. Kempa, V. Bovtun, M. Savinov, J. Hejtmánek, J. Prokleška, S. Kamba
    Spectroscopic studies of the ferroelectric and magnetic phase transitions in multiferroic Sr1-xBaxMnO3
    Journal of Physics: Condensed Matter 28 (2016) 175901(1)-175901(7).
  32. F. Kadlec, C. Kadlec, J. Vít, F. Borodavka, M. Kempa, J. Prokleška, J. Buršík, R. Uhrecký, S. Rols, Y. Sheng Chai, K. Zhai, Y. Sun, J. Drahokoupil, V. Goian, S. Kamba
    Electromagnon in the Z-type hexaferrite (BaxSr1-x)3Co2Fe24O41
    Physical Review B 94 (2016) 024419(1)-024419(8).
  33. A.B. Rinkevich, E.A. Kuznetsov, D.V. Perov, V. Bovtun, M. Kempa, D. Nužnyj, M. Savinov, M.I. Samoilovich, S.M. Klescheva, Y.I. Ryabkov, E.V. Tsvetkova
    High-Frequency Dielectric Properties of Nanocomposite and Ceramic Titanates
    IEEE Transactions on Nanotechnology 14 (2015) 585-592.
  34. J. Petzelt, D. Nužnyj, V. Bovtun, M. Kempa, M. Savinov, S. Kamba, J. Hlinka
    Lattice dynamics and dielectric spectroscopy of BZT and NBT lead-free perovskite relaxors - comparison with lead-based relaxors
    Phase Transitions 88 (2015) 320-332.
  35. P. Ondrejkovič, M. Kempa, J. Kulda, B. Frick, M. Appel, J. Combet, J. Dec, T. Lukasiewicz, J. Hlinka
    Dynamics of Nanoscale Polarization Fluctuations in a Uniaxial Relaxor
    Physical Review Letters 113 (2014) 167601(1)-167601(5).
  36. J. Petzelt, D. Nužnyj, M. Savinov, V. Bovtun, M. Kempa, T. Ostapčuk, J. Hlinka, G. Canu, V. Buscaglia
    Broadband Dielectric Spectroscopy of Ba(Zr,Ti)O3: Dynamics of Relaxors and Diffuse Ferroelectrics
    Ferroelectrics 469 (2014) 14-25.
  37. F. Kadlec, V. Goian, C. Kadlec, M. Kempa, P. Vaněk, J. Taylor, S. Rols, J. Prokleška, M. Orlita, S. Kamba
    Possible coupling between magnons and phonons in multiferroic CaMn7O12
    Physical Review B 90 (2014) 054307(1)-054307(8).
  38. S. Kamba, V. Goian, V. Skoromets, J. Hejtmánek, V. Bovtun, M. Kempa, F. Borodavka, P. Vaněk, A.A. Belik, J.H. Lee, O. Pacherová, K.M. Rabe
    Stron spin-phonon coupling in infrared and Raman spectra of SrMnO3
    Physical Review B 89 (2014) 064308(1)-064308(9).
  39. M. Kempa, P. Ondrejkovič, P. Bourges, P. Márton, J. Hlinka
    Lattice dynamics of NaI studied by inelastic neutron scattering: Absence of thermally induced discrete breathers
    Physical Review B 89 (2014) 054308(1)-054308(5).
  40. M. I. Samoilovich, A. B. Rinkevich, V. Bovtun, A. F. Belyanin, M. Kempa, D. Nužnyj, M. Yu. Tsvetkov, S. M. Kleshcheva
    Optical, Magnetic, and Dielectric Properties of Opal Matrices with Intersphere Nanocavities Filled with Crystalline Multiferroic, Piezoelectric, and Segnetoelectric Materials
    Russian Journal of General Chemistry 83 (2013) 2132-2147.
  41. C. Kadlec, F. Kadlec, V. Goian, M. Gich, M. Kempa, S. Rols, M. Savinov, J. Prokleška, M. Orlita, S. Kamba
    Electromagnon in ferrimagnetic $\varepsilon$-Fe2O3 nanograin ceramics
    Physical Review B 88 (2013) 104301(1)-104301(8).
  42. J. Petzelt, D. Nužnyj, V. Bovtun, M. Savinov, M. Kempa, I. Rychetský
    Broadband dielectric and conductivity spectroscopy of inhomogeneous and composite conductors
    physica status solidi (a) 210 (2013) 2259-2271.
  43. L. Fernandez-Garcia, Marta Suarez, J. L. Menendez, C. Pecharroman, D. Nužnyj, V. Bovtun, M. Savinov, M. Kempa, J. Petzelt
    Dielectric properties of carbon nanofibre/alumina composites
    Carbon 57 (2013) 380-387.
  44. M. Kempa, P. Ondrejkovič, P. Bourges, J. Ollivier, S. Rols, J. Kulda, S. Margueron, J. Hlinka
    The temperature dependence of the phononic band gap of NaI
    Journal of Physics: Condensed Matter 25 (2013) 055403(1)-055403(2).
  45. P. Ondrejkovič, M. Guennou, M. Kempa, Y. Vysochanskii, G. Garbarino, J. Hlinka
    An x-ray scattering study of Sn2P2S6: absence of incommensurate phase up to 1 GPa
    Journal of Physics: Condensed Matter 25 (2013) 115901(1)-115901(5).
  46. D. Nužnyj, M. Savinov, V. Bovtun, M. Kempa, J. Petzelt, B. Mayoral, T. McNally
    Broad-band conductivity and dielectric spectroscopy of composites of multiwalled carbon nanotubes and poly(ethylene terephthalate) around their low percolation threshold
    Nanotechnology 24 (2013) 055707(1)-055707(9).
  47. J. Langmaier, S. Záliš, Z. Samec, V. Bovtun, M. Kempa
    Origin of the correlation between the standard Gibbs energies of ion transfer from water to a hydrophobic ionic liquid and to a molecular solvent
    Electrochimica Acta 87 (2013) 591-598.
  48. S. Kamba, V. Goian, D. Nužnyj, V. Bovtun, M. Kempa, J. Prokleška, M. Bernhagen, R. Uecker, D.G. Schlom
    Polar phonon anomalies in single-crystalline TbScO3
    Phase Transitions 86 (2013) 206-216.
  49. M. Paściak, T. R. Welberry, J. Kulda, M. Kempa, J. Hlinka
    Polar nanoregions and diffuse scattering in the relaxor ferroelectric PbMg1/3Nb2/3O3
    Physical Review B 85 (2012) 224109(1)-224109(9).
  50. D. Nužnyj, J. Petzelt, M. Savinov, T. Ostapčuk, V. Bovtun, M. Kempa, J. Hlinka, V. Buscaglia, M. T. Buscaglia, P. Nanni
    Broadband dielectric response of Ba(Zr,Ti)O3 ceramics: From incipient via relaxor and diffuse up to classical ferroelectric behavior
    Physical Review B 86 (2012) 014106(1)-014106(9).