1. 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).
  2. Š. Svirskas, V.V. Shvartsman, M. Dunce, R. Ignatans, E. Birks, T. Ostapčuk, S. Kamba, D.C. Lupascu, J. Banys
    Two-phase dielectric polar structures in 0.1NBT-0.6ST-0.3PT solid solutions
    Acta Materialia 153 (2018) 117-125.
  3. B. Gorshunov, V. Torgashev, E. Zhukova, V. Tomas, M. Belyanchikov, C. Kadlec, F. Kadlec, M. Savinov, T. Ostapčuk, J. Petzelt, J. Prokleška, P. Tomas, E. Pestrjakov, D. Fursenko, G. Shakurov, A. Prokhorov, V. Gorelik, L. Kadyrov, V. Uskov, R. Kremer, M. Dressel
    Incipient ferroelectricity of water molecules confined to nano-channels of beryl
    Nature Communications 7 (2016) 12842(1)-12842(10).
  4. 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.
  5. M. Paściak, T.R. Welberry, A.P. Heerdegen, V. Laguta, T. Ostapčuk, S. Leoni, J. Hlinka
    Atomistic modeling of diffuse scattering in cubic PbZrO3
    Phase Transitions 88 (2015) 273-282.
  6. E. Buixaderas, T. Ostapčuk, J. Kroupa, M. Savinov, I. Gregora, J. Hlinka
    Catching the intermediate phase in PZT 99/1 single crystals
    Phase Transitions 87 (2014) 1105-1113.
  7. 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.
  8. T. Ostapčuk, C. Kadlec, P. Kužel, J. Kroupa, V. Železný, J. Hlinka, J. Petzelt, J. Dec
    Anisotropic dielectric response of lead zirconate crystals in the terahertz and infrared range at low temperature
    Phase Transitions 87 (2014) 1129-1137.
  9. J. Hlinka, T. Ostapčuk, E. Buixaderas, C. Kadlec, P. Kužel, I. Gregora, J. Kroupa, M. Savinov, A. Klíč, J. Drahokoupil, I. Etxebarria, J. Dec
    Multiple Soft-Mode Vibrations of Lead Zirconate
    Physical Review Letters 112 (2014) 197601-1-197601-5.
  10. Jeevaka Weerasinghe, L. Bellaiche, T. Ostapčuk, P. Kužel, C. Kadlec, S. Lisenkov, I. Ponomareva, J. Hlinka
    Emergence of central mode in the paraelectric phase of ferroelectric perovskites
    MRS Communications 3 (2013) 41-45.
  11. 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).
  12. T. Ostapčuk, J. Petzelt, P. Kužel, M. Savinov, J. Hlinka, A. Tkach, P.M. Vilarinho, S. Lisenkov, I. Ponomareva, L. Bellaiche
    Lattice dynamics in Ba0.7Sr0.3TiO3: study by THz and IR spectroscopy and ab-initio simulations
    Phase Transitions 83 (2010) 955-965.
  13. E. Simon, T. Ostapčuk, P. Kužel, J. Hlinka, S. Kamba, E. Nguema, P. Mounaix, J.C. Carru, G. Velu
    Terahertz and far infrared response of BaxSr1-xTiO3 films
    Phase Transitions 83 (2010) 966-973.
  14. T. Ostapčuk, J. Petzelt, J. Hlinka, V. Bovtun, P. Kužel, I. Ponomareva, S. Lisenkov, L. Bellaiche, A. Tkach and, P. Vilarinho
    Broad-band dielectric spectroscopy and ferroelectric soft-mode response in the Ba0.6Sr0.4TiO3 solid solution
    Journal of Physics: Condensed Matter 21 (2009) 474215(1)-474215(9).
  15. A. Kholkin, I. Bdikin, T. Ostapčuk, J. Petzelt
    Room temperature surface piezoelectricity in SrTiO3 ceramics via piezoresponse force microscopy
    Applied Physics Letters 93 (2008) 222905(1)-222905(3).
  16. T. Ostapčuk, J. Petzelt, P. Kužel, S. Veljko, A. Tkach, P. Vilarinho, I. Ponomareva, L. Bellaiche, E. Smirnova, V. Lemanov, A. Sotnikov, M. Weihnacht
    Infrared and THz soft-mode spectroscopy of (Ba,Sr)TiO3 ceramics.
    Ferroelectrics 367 (2008) 139-148.
  17. J. Hlinka, T. Ostapčuk, D. Nužnyj, J. Petzelt, P. Kužel, C. Kadlec, P. Vaněk, I. Ponomareva, L. Bellaiche
    Coexistence of the Phonon and Relaxation Soft Modes in the Terahertz Dielectric Response of Tetragonal BaTiO3
    Physical Review Letters 101 (2008) 167402(1)-167402(4).
  18. I. Ponomareva, L. Bellaiche, T. Ostapčuk, J. Hlinka, J. Petzelt
    Terahertz dielectric response of cubic BaTiO3
    Physical Review B 77 (2008) 012102(1)-012102(4 ).
  19. J. Petzelt, T. Ostapčuk, I. Gregora, D. Nužnyj, I. Rychetský, K. Maca, Z. Shen
    Grain boundary and size effect on the dielectric, infrared and Raman response of SrTiO3 nanograin ceramics
    Ferroelectrics 363 (2008) 227-244.
  20. J. Petzelt, T. Ostapčuk, I. Gregora, P. Kužel, J. Liu, Z. Shen
    Infrared and Raman studies of the dead grain-boundary layers in SrTiO3 fine-grain ceramics
    Journal of Physics: Condensed Matter 19 (2007) 196222(1)-196222(16).
  21. T. Ostapčuk, M. Savinov, J. Petzelt, A. Pashkin, M. Dressel, E. Smirnova, V. Lemanov, A. Sotnikov, M. Weihnacht
    Far infrared spectroscopy of Sr1-xBaxTiO3 (0.01 <= x <= 0.2) ceramics
    Ferroelectrics 353 (2007) 70-77.
  22. J. Hlinka, T. Ostapčuk, D. Noujni, S. Kamba, J. Petzelt
    Anisotropic dielectric function in polar nano-regions of relaxor ferroelectrics
    Physical Review Letters 96 (2006) 027601/1-027601/4.
  23. J. Hlinka, J. Petzelt, S. Kamba, D. Noujni, T. Ostapčuk
    Infrared dielectric response of relaxor ferroelectrics
    Phase Transitions 79 (2006) 41-78.
  24. J. Petzelt, T. Ostapčuk, I. Gregora, M. Savinov, D. Chvostová, J. Liu, Z. Shen
    Grain boundary effects on dielectric, infrared and Raman response of SrTiO3 nanograin ceramics
    Journal of the European Ceramic Society 26 (2006) 2855-2859.
  25. J. Petzelt, J. Hlinka, S. Kamba, T. Ostapčuk, D. Noujni, I. Rychetský
    Effective infrared response of inhomogeneous ferroelectrics
    Ferroelectrics 334 (2006) 475-485.
  26. V. Buscaglia, M. Buscaglia, M. Viviani, L. Mitoseriu, P. Nanni, V. Trefiletti, P. Piaggio, I. Gregora, T. Ostapčuk, J. Petzelt
    Grain size and grain boundary-related effects on the properties of nanocrystalline barium titanate ceramics
    Journal of the European Ceramic Society 26 (2006) 2889-2898.
  27. T. Ostapčuk, J. Petzelt, M. Savinov, V. Buscaglia, L. Mitoseriu
    Grain-size effect in BaTiO3 ceramics: study by far infrared spectroscopy
    Phase Transitions 79 (2006) 361-373.
  28. T. Ostapčuk, A.Pashkin, J. Petzelt, V. Železný, D.Rafaja, I. Drbohlav
    Soft-mode spectroscopy of BaTiO3 thin films
    Journal of the European Ceramic Society 25 (2005) 3063-3067.
  29. V. Buscaglia, M. T. Buscaglia, M. Viviani, T. Ostapčuk, I. Gregora, J. Petzelt, L. Mitoseriu, P. Nanni, A. Testino, R. Calderone, C. Harnagea, Z. Zhao, M. Nygren
    Raman and AFM piezoelectric study of dense BaTiO3 nanocrystalline ceramics
    Journal of the European Ceramic Society 25 (2005) 3059-3062.
  30. T. Ostapčuk, J. Petzelt, V. Železný, A. Pashkin, I. Drbohlav, P. Kužel, D. Rafaja, B.P. Gorshunov, M. Dressel, C. Ohly, S. Hoffmann-Eifert, R. Waser
    Origin of soft-mode stiffening and reduced dielectric response in SrTiO3 thin films
    Physical Review B 66 (2002) 235406(1) -235406(12).