Zdeněk Jirák

Publications:

  1. Kyohoon Ahn, Zdeněk Jirák, Jiří Hejtmánek, Karel Knížek
    Investigating the thermal properties of CrN: Theoretical insights and real ceramics
    Solid State Sci. 148 (2024) 107413(1) - 107413(6).

  2. N. M. Belozerova, O. N. Lis, A. V. Rutkauskas, E. V. Lukin, D. P. Kozlenko, Z. Jirák, B. N. Savenko, N. T. Nguyen, A. L. Zhaludkevich, S. E. Kichanov
    Pressure-induced phase transition in nanostructured cation-deficient Zn0.24Fe2.53☐0.13O4 ferrite
    Physica B 690 (2024) 416210(1) - 416210(5).

  3. Ondřej Kaman, Denisa Kubániová, Lenka Kubíčková, Vít Herynek, Pavel Veverka, Zdeněk Jirák, Mariia Pashchenko, Tomáš Kmječ, Miroslav Veverka, Mojmír Štorkán, Ulrich G. Hofmann, Jaroslav Kohout
    Magnetic particle spectroscopy and magnetic particle imaging of zinc and cobalt ferrite nanoparticles: Distinct relaxation mechanisms
    J. Alloy. Compd. 978 (2024) 173022(1) - 173022(15).

  4. K. Ahn, Z. Jirák, K. Knížek, P. Levinský, M. Soroka, L. Beneš, J. Zich, J. Navrátil, J. Hejtmánek
    Heat capacity and thermal conductivity of CdCr2Se4 ferromagnet: magnetic field dependence, experiment and calculations
    J. Phys. Chem. Solids 174 (2023) 111139(1) - 111139().

  5. K. Knížek and Z. Jirák
    Magnetic proximity effects at the ferrite/5d metal interface: the GGA+U calculations
    Phys. Rev. B 108 (2023) 035145(1) - 035145(8).

  6. D. P. Kozlenko, E. V. Lukin, S. E. Kichanov, Z. Jirák, N. O. Golosova, and B. N. Savenko
    High-pressure evolution of the magnetic order in LaMnO3
    Phys. Rev. B 107 (2023) 144426(1) - 144426(8).

  7. J. Zich, M. Míšek, V. Holý, K. Carva, J. Čížek, J. Navrátil, P. Čermák, P. Knotek, K. Čermák Šraitrová, S. Cichoň , J. Hejtmánek , Z. Jirák, Č. Drašar
    FexBi2Se3 superconductivity, dimensional transport, and high electron mobility are associated with the natural nanostructure of Bi2Se3 single crystals
    Phys. Rev. B 108 (2023) 125308(1) - 125308(13).

  8. K. Ahn, A. Marmodoro, J. Hejtmánek, Z. Jirák, K. Knížek
    Role of spin-orbit coupling in canted ferromagnetism and spin-wave dynamics of SrRuO3
    Phys. Rev. B 105 (2022) 245107(1) - 245107(8).

  9. N. M. Belozerova, S. E. Kichanov, Z. Jirák, D. P. Kozlenko, O. Kaman, E. V. Lukin, B. N. Savenko
    The crystal and magnetic structure of nanostructured manganite La0.53Sr0.47MnO3 at high pressure
    Mater. Chem. Phys. 262 (2021) 124310(1) - 124310(8).

  10. O. Kaman, D. Kubániová, K. Knížek, L. Kubíčková, M. Klementová, J. Kohout, Z. Jirák
    Structure and magnetic state of hydrothermally prepared Mn-Zn ferrite nanoparticles
    J. Alloy. Compd. 888 (2021) 161471(1) - 161471(14).

  11. K. Knížek, P. Novák and Z. Jirák
    Exchange interactions in ɛ-Fe2O3: GGA + U calculations
    J. Phys.-Condens. Mat. 33 (2021) 155502(1) - 155502(7).

  12. Karel Knížek, Miroslav Soroka, Ondřej Kaman, Jarmila Kuličková, Petr Levinský, Jiří Hejtmánek, and Zdeněk Jirák
    Electronic and heat transport phenomena in the nanogranular thiospinel Fe3S4
    Phys. Rev. B 103 (2021) 245129(1) - 245129(17).

  13. D. Nuzhnyy, 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
    Mater. Res. Bull. 144 (2021) 111459(1) - 111459(14).

  14. M. Soroka, K. Knížek, Z. Jirák, P. Levinský, M. Jarošová, J. Buršik, and J. Hejtmánek
    Anomalous Nernst effect in the ceramic and thin film samples of La0.7Sr0.3CoO3 perovskite
    Phys. Rev. Mater. 5 (2021) 035401(1) - 035401(10).

  15. P. Veverka, L. Kubíčková, Z. Jirák, V. Herynek, M. Veverka, O. Kaman
    Temperature and field dependences of transverse relaxivity of Co–Zn ferrite nanoparticles coated with silica: The role of magnetic properties and different regimes
    Mater. Chem. Phys. 260 (2021) 124178(1) - 124178(8).

  16. N. M. Belozerova, S. E. Kichanov, D. P. Kozlenko, O. Kaman, Z. Jirák, E. V. Lukin, B. N. Savenko
    Neutron diffraction study of the crystal and magnetic structures of nanostructured Zn0.34Fe2.53O4 ferrite
    J. Nanopart. Res. 22 (2020) 121(1) - 121(9).

  17. D. Nuzhnyy, 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
    J. Phys.-Condens. Mat. 32 (2020) 415701(1) - 415701(12).

  18. O. Kaman, Z. Jirák, J. Hejtmánek, A. Ndayishimiye, M. Prakasam, G. Goglio
    Tunneling magnetoresistance of hydrothermally sintered La1-xSrxMnO3-silica nanocomposites
    J. Magn. Magn. Mater. 479 (2019) 135 - 143.

  19. O. N. Lis, S. E. Kichanov, D. P. Kozlenko, Z. Jirák, A. V. Belushkina, B. N. Savenko
    Pressure-induced spin state crossover in layered cobaltite LaSrCoO4
    J. Magn. Magn. Mater. 487 (2019) 165360(1) - 165360(5).

  20. J. Stergar, Z. Jirák, P. Veverka, L. Kubíčková, T. Vrba, J. Kuličková, K. Knížek, F. Porcher, J. Kohout, O. Kaman
    Mn-Zn ferrite nanoparticles coated with mesoporous silica as core materiál for heat-triggered release of therapeutic agents
    J. Magn. Magn. Mater. 475 (2019) 429 - 435.

  21. P. Veverka, M. Pashchenko, L. Kubíčková, J. Kuličková, Z. Jirák, R. Havelek, K. Královec, J. Kohout, O. Kaman
    Rod-like particles of silica-coated maghemite: synthesis via akaganeite, characterization and biological properties
    J. Magn. Magn. Mater. 476 (2019) 149 - 156.

  22. Z. Jirák, O. Kaman, K. Knížek, P. Levinský, M. Míšek, P. Veverka, J. Hejtmánek
    High-field magnetoconductance in La-Sr manganites of FM and AFM ground states
    J. Magn. Magn. Mater. 456 (2018) 167 - 178.

  23. O. Kaman, V. Herynek, P. Veverka, L. Kubíčková, M. Pashchenko, J. Kuličková, and Z. Jirák
    Transverse Relaxivity of Nanoparticle Contrast Agents for MRI: Different Magnetic Cores and Coatings
    IEEE Trans. Magn. 54 (2018) 5300405(1) - 5300405(5).

  24. A. Ndayishimiye, S. Buffière, M. -A. Dourges, A. Largeteau, M. Prakasam, S. Mornet, O. Kaman, Z. Jirák, J. Hejtmánek, G. Goglio
    Design of 0–3 type nanocomposites using hydrothermal sintering
    Scripta Mater. 148 (2018) 15 - 19.

  25. N. M. Belozerova, S. E. Kichanov, D. P. Kozlenko, O. Kaman and Z. Jirák
    Core-Shell Magnetic Structure of La1-xSrxMnO3+δ Nanocrystallites
    IEEE Trans. Magn. 53 (2017) 2300905(1) - 2300905(5).

  26. H. Fujishiro, , Y. Noda, K. Akuzawa, T. Naito, A. Ito, T. Goto, M. Maryško, Z. Jirák, J. Hejtmánek, and K. Nitta
    Electrical resistivity anomaly, valence shift of Pr ion, and magnetic behavior in epitaxial (Pr1-yYy)1-xCaxCoO3 thin films under compressive strain
    J. Appl. Phys. 121 (2017) 115104(1) - 115104(8).

  27. J. Hejtmánek, Z. Jirák, O. Kaman and S. Vratislav
    Tunneling magnetoresistance in nanogranular La1-xSrxMnO3 (x∼0.5)
    AIP Adv. 7 (2017) 055818(1) - 055818(6).

  28. Z. Jirák, J. Hirschner, O. Kaman, K. Knížek, P. Levinský, M. Maryško, J. Hejtmánek
    Structure and transport properties of La1−xSrxMnO3 granular ceramics
    J. Phys. D-Appl. Phys. 50 (2017) 075001(1) - 075001(15).

  29. Z. Jirák, J. Kuličková, V. Herynek, M. Maryško, J. Koktan, O. Kaman
    Titania-coated manganite nanoparticles: Synthesis of the shell, characterization and MRI properties
    J. Magn. Magn. Mater. 427 (2017) 245 - 250.

  30. O. Kaman, J. Kuličková, V. Herynek, J. Koktan, M. Maryško, T. Dědourková, K. Knížek, Z. Jirák
    Preparation of Mn-Zn ferrite nanoparticles and their silica-coated clusters: Magnetic properties and transverse relaxivity
    J. Magn. Magn. Mater. 427 (2017) 251 - 257.

  31. O. Kaman, J. Kuličková, M. Maryško, P. Veverka, V. Herynek, R. Havelek, K. Královec, D. Kubániová, J. Kohout, P. Dvořák, Z. Jirák
    Mn-Zn Ferrite Nanoparticles with Silica and Titania Coatings: Synthesis, Transverse Relaxivity and Cytotoxicity
    IEEE Trans. Magn. 53 (2017) 1 - 8.

  32. K. Knížek, Z. Jirák, O. Kaman, M. Maryško and F. Damay
    Effect of Tb3+ doping in mixed-valence manganites and cobaltites
    J. Phys.-Condens. Mat. 29 (2017) 405802(1) - 405802(9).

  33. J. Koktan, G. Goglio, J. Hejtmánek, Z. Jirák, K. Knížek, J. Kuličková, M. Maryško, O. Kaman
    Magnetoconductivity of the La1-xSrxMnO3@TiO2 Nanocomposite
    IEEE Trans. Magn. 53 (2017) 8109606(1) - 8109606(6).

  34. P. Veverka, O. Kaman, K. Knížek, P. Novák, M. Maryško, Z. Jirák
    Magnetic properties of rare-earth-doped La0.7Sr0.3MnO3
    J. Phys.-Condens. Mat. 29 (2017) 035803(1) - 035803(9).

  35. O. Kaman, J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško, P. Novák, S. Vratislav
    Effects of Tb3+ dopants in the La1-xSrxMnO3 bulk and nanoparticle ferromagnets
    J. Phys.-Condens. Mat. 28 (2016) 206001(1) - 206001(8).

  36. H. Němec, K. Knížek, Z. Jirák, J. Hejtmánek, M. Soroka, J. Buršík
    Charge transport in thin layer NaxCoO2 (x ∼ 0.63) studied by terahertz spectroscopy
    J. Phys.-Condens. Mat. 28 (2016) 355601(1) - 355601(6).

  37. Y. Noda, H. Fujishiro, T. Naito, A. Ito, T. Goto, J. Hejtmanek, Z. Jirak
    Electrical resistivity anomaly in (Pr1−yMy)1−xCaxCoO3 epitaxial films (M=Y, Gd) fabricated by pulsed laser deposition
    AIP Adv. 6 (2016) 025318(1) - 025318(9).

  38. N. M. Belozerova, S. E. Kichanov, Z. Jirák, D. P. Kozlenko, M. Kačenka, O. Kaman, E. V. Lukin, B. N. Savenko
    High pressure effects on the crystal and magnetic structure of nanostructured manganites La0.63Sr0.37MnO3 and La0.72Sr0.28MnO3
    J. Alloy. Compd. 646 (2015) 998 - 1003.

  39. T. Dědourková, O. Kaman, P. Veverka, J. Koktan, M. Veverka, J. Kuličková, Z. Jirák, V. Herynek
    Clusters of magnetic nanoparticles as contrast agents for MRI: the effect of aggregation on T2 relaxivity
    IEEE Trans. Magn. 51 (2015) 5300804(1) - 5300804(3).

  40. J. Hejtmánek, Z. Jirák, and J. Šebek
    Spin-entropy contribution to thermopower in the [Ca2CoO3-t ]0.62(CoO2) misfits
    Phys. Rev. B 92 (2015) 125106(1) - 125106(11).

  41. Z. Jirák, M. Kačenka, O. Kaman, M. Maryško, N. Belozerova, S. Kichanov, D. Kozlenko
    Role of surface on magnetic properties of La1-xSrxMnO3+δ nanocrystallites
    IEEE Trans. Magn. 51 (2015) 1000204(1) - 1000204(3).

  42. M. Kačenka, O. Kaman, Z. Jirák, M. Maryško, P. Veverka, M. Veverka, S. Vratislav
    The magnetic and neutron diffraction studies of La1-xSrxMnO3 nanoparticles prepared via molten salt synthesis
    J. Solid State Chem. 221 (2015) 364 - 372.

  43. M. Kačenka, O. Kaman, S. Kikerlová, B. Pavlů, Z. Jirák, D. Jirák, V. Herynek, J. Černý, F. Chaput, S. Laurent, I. Lukeš
    Fluorescent magnetic nanoparticles for cell labeling: Flux synthesis of manganite particles and novel functionalization of silica shell
    J. Colloid. Interf. Sci. 447 (2015) 97 - 106.

  44. O. Kaman, T. Kořínková, Z. Jirák, M. Maryško, M. Veverka
    The superspin glass transition in zinc ferrite nanoparticles
    J. Appl. Phys. 117 (2015) 17C706(1) - 17C706(4).

  45. K. Knížek, Z. Jirák, J. Hejtmánek, P. Brázda, J. Buršík, M. Soroka, P. Beran
    Structural study of layered cobaltate Lax/3CoO2 (x ~ 1) at temperatures up to 800 K
    J. Solid State Chem. 229 (2015) 160 - 163.

  46. K. Knížek, P. Novák, Z. Jirák, J. Hejtmánek, M. Maryško, J. Buršík
    Magnetism and transport properties of layered rare-earth cobaltates Ln0.3CoO2
    J. Appl. Phys. 117 (2015) 17B706(1) - 17B706(4).

  47. P. Novák, K. Knížek, Z. Jirák, J. Buršík
    The calculation of rare-earth levels in layered cobaltates Rx/3CoO2 (x≦1)
    J. Magn. Magn. Mater. 381 (2015) 145 - 150.

  48. P. Veverka, O. Kaman, M. Kačenka, V. Herynek, M. Veverka, E. Šantavá, I. Lukeš, Z. Jirák
    Magnetic La1-xSrxMnO3 nanoparticles as contrast agents for MRI: the parameters affecting 1H transverse relaxation
    J. Nanopart. Res. 17 (2015) 33(1) - 33(11).

  49. Z. Jirak, J. Hejtmanek, K. Knizek, P. Novak, E. Santava, H. Fujishiro
    Magnetism of perovskite cobaltites with Kramers rare-earth ions
    J. Appl. Phys. 115 (2014) 17E118 (1) - 17E118 (3).

  50. M. Kačenka, O. Kaman, Z. Jirák, M. Maryško, P. Žvátora, S. Vratislav and I. Lukeš
    Magnetic properties of La1-xSrxMnO3 nanoparticles prepared in a molten salt
    J. Appl. Phys. 115 (2014) 17B525(1) - 17B525(3).

  51. K. Knizek, Z. Jirak, J. Hejtmanek, M. Veverka, O. Kaman, M. Marysko, E. Santava, and G. Andre
    Effect of Ising-type Tb3+ions on the low-temperature magnetism of La, Ca cobaltite
    J. Phys.-Condens. Mat. 26 (2014) 116003(1) - 116003(9).

  52. K. Knížek, Z. Jirák, P. Novák, C. de la Cruz
    Non-collinear magnetic structures of TbCoO3 and DyCoO3
    Solid State Sci. 28 (2014) 26 - 30.

  53. M. Maryško, J. Hejtmánek, Z. Jirák, O. Kaman, K. Knížek
    Terbium induced glassy magnetism in La,Ca-based cobaltites
    J. Appl. Phys. 115 (2014) 17E103(1) - 17E103(3).

  54. Tomoyuki Naito, Hiroyuki Fujishiro, Terukazu Nishizaki, Norio Kobayashi, J. Hejtmánek, K. Knížek and Z. Jirák
    Suppression of the metal-insulator transition by magnetic field in (Pr1-yYy)0.7Ca0.3CoO3 (y=0.0625)
    J. Appl. Phys. 115 (2014) 233914(1) - 233914(5).

  55. Jessica Padilla-Pantoja, José Luis García-Muñoz, Bernat Bozzo, Z. Jirák, Javier Herrero-Martín
    Structural Properties and Singular Phase Transitions of Metallic Pr0.50Sr0.50CoO3 Cobaltite
    Inorg. Chem. 53 (2014) 12297 - 12304.

  56. N. T. Dang, D. P. Kozlenko, S. E. Kichanov, L. S. Dubrovinsky, Z. Jirák, D. M. Levin, E. V. Lukin and B. N. Savenko
    Structural and Magnetic Phase Transitions Occurring in Pr0.7Sr0.3MnO3 Manganite at High Pressures
    J. Exp. Theor. Phys. Lett. 97 (2013) 540 - 545.

  57. H. Fujishiro, T. Naito, D. Takeda, N. Yoshida, T. Watanabe, K. Nitta, J. Hejtmánek, K. Knížek, and Z. Jirák
    Simultaneous valence shift of Pr and Tb ions at the spin-state transition in (Pr1-yTby)0.7Ca0.3CoO3
    Phys. Rev. B 87 (2013) 155153(1) - 155153(7).

  58. J. Hejtmánek, Z. Jirák, O. Kaman, K. Knížek, E. Šantavá, K. Nitta, T. Naito, H. Fujishiro
    Phase transition in Pr0.5Ca0.5CoO3 and related cobaltites
    Eur. Phys. J. B 86 (2013) 305(1) - 305(8).

  59. Z. Jirák, J. Hejtmánek, K. Knížek, M. Maryško, P. Novák, E. Šantavá, T. Naito, H. Fujishiro
    Ground-state properties of the mixed-valence cobaltites Nd0.70Sr0.3CoO3, Nd0.7Ca0.3.CoO3 and Pr0.7.Ca0.3CoO3
    J. Phys.-Condens. Mat. 25 (2013) 216006(1) - 216006(12).

  60. K. Knížek, J. Hejtmánek, M. Maryško, P. Novák, E. Šantavá, Z. Jirák, T. Naito, H. Fujishiro, C. de la Cruz
    Spin-state crossover and low-temperature magnetic state in yttrium-doped Pr0.7Ca0.3CoO3
    Phys. Rev. B 88 (2013) 224412(1) - 224412(8).

  61. D. P. Kozlenko, N. T. Dang, S. E. Kichanov, E. V. Lukin, K. Knížek, Z. Jirák, L. S. Dubrovinsky, V. I. Voronin and B. N. Savenko
    Pressure-induced structural transformations, orbital order and antiferromagnetism in La0.75Ca0.25MnO3
    Eur. Phys. J. B 86 (2013) 360(1) - 360(8).

  62. P. Novák, K. Knížek, M. Maryško, Z. Jirák and J. Kuneš
    Crystal field and magnetism of Pr3+ and Nd3+ ions in orthorhombic perovskites
    J. Phys.-Condens. Mat. 25 (2013) 4460001(1) - 4460001(8).

  63. N. T. Danga, D. P. Kozlenko, S. E. Kichanov, Z. Jirák, E. V. Lukin, and B. N. Savenko
    High Pressure Effect on the Crystal and Magnetic Structure of Pr0.1Sr0.9MnO3 Manganite
    J. Surf. Ingestig.-X-Ray Synchro. 6 (2012) 817 - 820.

  64. H. Fujishiro, T. Naito, S. Ogawa, N. Yoshida, K. Nitta, J. Hejtmánek, K. Knížek, and Z. Jirák
    Valence Shift of Pr Ion from 3+ to 4+ in (Pr1-yYy)..0.7Ca0.3CoO3 Estimated by X-Ray Absorption Spectroscopy
    J. Phys. Soc. Jpn. 81 (2012) 064709(1) - 064709(5).

  65. J. Hejtmánek, K. Knížek, M. Maryško, Z. Jirák, D. Sedmidubský, O. Jankovský, Š. Huber, P. Masschelein, B. Lenoir
    Magnetic and magnetotransport properties of misfit cobaltate Ca3Co3.93O9+δ
    J. Appl. Phys. 111 (2012) 07D715(1) - 07D715(3).

  66. A. I. Beskrovnyy and Z. Jirák
    Structural modulation in Bi2Sr2Ca0.4Y0.6Cu2O8+δ
    J. Phys.: Conf. Ser. 340 (2012) 012055(1) - 012055(5).

  67. S. E. Kichanov, D. P. Kozlenko, A. V. Belushkin, V. F. Reutov, S. O. Samoilenko, Z. Jirák, B. N. Savenko, L. A. Bulavin and Y. V. Zubavichus
    A study of formation of iron nanoparticles in aluminium matrix with helium pores
    J. Phys.: Conf. Ser. 351 (2012) 012013(1) - 012013(5).

  68. K. Knížek, J. Hejtmánek, M. Maryško, Z. Jirák, J. Buršík
    Stabilization of the high-spin state of Co3+ in LaCo1-xRhxO3
    Phys. Rev. B 85 (2012) 134401(1) - 134401(7).

  69. K. Knížek, Z. Jirák, J. Hejtmánek, M. Maryško, J. Buršík
    Structure and properties of novel cobaltates Ln0.3CoO2 (Ln = La, Pr, and Nd)
    J. Appl. Phys. 111 (2012) 07D707(1) - 07D707(3).

  70. M. Maryško, Z. Jirák, J. Hejtmánek and K. Knížek
    Glassy ferromagnetism and phase separation in Pr0.5Ca0.5CoO3
    J. Appl. Phys. 111 (2012) 07E110(1) - 07E110(3).

  71. M. Dlouhá, J. Hejtmánek, Z. Jirák, K. Knížek, M. Veverka, S. Vratislav
    Structure and Electric Transport in LaCo0.67Cu0.33O3
    J. Superconductivity and Novel Magnetism 24 (2011) 747 - 751.

  72. N. O. Golosova, D. P. Kozlenko, A. I. Kolesnikov, V. Yu. Kazimirov, M. B. Smirnov, Z. Jirák, and B. N. Savenko
    Evolution of the phonon density of states of LaCoO3 over the spin state transition
    Phys. Rev. B 83 (2011) 214305(1) - 214305(6).

  73. O. Kaman, P. Veverka, Z. Jirák, M. Maryško, K. Knížek, M. Veverka, P. Kašpar, M. Burian, V. Šepelák, E. Pollert
    The magnetic and hyperthermia studies of bare and silica-coated La0.75Sr0.25MnO3 nanoparticles
    J. Nanopart. Res. 13 (2011) 1237 - 1252.

  74. K. Knížek, J. Hejtmánek, M. Maryško, E. Šantavá, Z. Jirák, J. Buršík, K. Kirakci, P. Beran
    Structure and properties of a novel cobaltate La0.30CoO2
    J. Solid State Chem. 184 (2011) 2231 - 2237.

  75. D. P. Kozlenko, T. A. Chan, S. E. Kichanov, Z. Jirák, L. S. Dubrovinsky, and B. N. Savenko
    Structural and Magnetic Phase Transitions in Pr0.7Ca0.3MnO3 at High Pressures
    J. Exp. Theor. Phys. Lett. 92 (2011) 590 - 594.

  76. M. Maryško, Z. Jirák, K. Knížek, P. Novák, J. Hejtmánek, T. Naito, H. Sasaki, and H. Fujishiro
    Thermally and field driven spin-state transitions in (Pr(1-y)Yy)Ca0.3CoO3
    J. Appl. Phys. 109 (2011) 07E127-1 - 07E127-3.

  77. M. Veverka, Z. Jirák, O. Kaman, K. Knížek, M. Maryško, E. Pollert, K. Závěta, A. Lančok, M. Dlouhá and S. Vratislav
    Distribution of cations in nanosize and bulk Co-Zn ferrites
    Nanotechnology 22 (2011) 345701(1) - 345701(7).

  78. M. Dlouhá, J. Hejtmánek, Z. Jirák, K. Knížek, P. Tomeš, S. Vratislav
    Antiferromagnetic ordering in the double perovskites La2-xSrxCoRuO6
    J. Magn. Magn. Mater. 322 (2010) 1189 - 1191.

  79. J. Hejtmánek, E. Šantavá, K. Knížek, M. Maryško, and Z. Jirák, T. Naito, H. Sasaki, and H. Fujishiro
    Metal-insulator transition and the Pr3+/Pr4+ valence shift in (Pr1-yYy)0.7Ca0.3CoO3
    Phys. Rev. B 82 (2010) 165107(1) - 165107(7).

  80. Z. Jirák, E. Hadová, O. Kaman, K. Knížek, M. Maryško, E. Pollert, M. Dlouhá, S. Vratislav
    Ferromagnetism versus charge ordering in the Pr0.5Ca0.5MnO3 and La0.5Ca0.5MnO3 nanocrystals
    Phys. Rev. B 81 (2010) 024403(1) - 024403(8).

  81. K. Knížek, J. Hejtmánek, P. Novák, Z. Jirák
    Charge transfer, valence, and the metal-insulator transition in Pr0.5Ca0.5CoO3
    Phys. Rev. B 81 (2010) 155113(1) - 155113(5).

  82. K. Knížek, Z. Jirák, J. Hejtmánek, P. Novák
    Transition from the diamagnetic insulator to ferromagnetic metal in La1-xSrxCoO3
    J. Magn. Magn. Mater. 322 (2010) 1221 - 1223.

  83. D. P. Kozlenko, N. T. Dang, Z. Jirák, S. E. Kichanov, E. V. Lukin, B. N. Savenko, L. S. Dubrovinsky, C. Lathe, and C. Martin
    Structural and magnetic phase transitions in Pr0.15Sr0.85MnO3 at high pressure
    Eur. Phys. J. B 77 (2010) 407 - 411.

  84. M. Maryško, Z. Jirák, K. Knížek, C. Autret-Lambert
    Static and dynamic behavior of the cluster phase in LaMn0.6Co0.4O3
    J. Magn. Magn. Mater. 322 (2010) 1392 - 1395.

  85. M. Maryško, E. Pollert, O. Kaman, P. Veverka, Z. Jirák
    Manganese Perovskite Nanoparticles and the Downturn of Inverse Susceptibility above the Curie Temperature
    Acta Phys. Polon. A 118 (2010) 792 - 793.

  86. V. Procházka, Cz. Kapusta, M. Sikora, H. Štěpánková, V. Chlan, K. Knížek, Z. Jirák
    Local surrounding of Mn in LaMn1-xCoxO3 compounds by means of EXAFS on Mn-K
    J. Magn. Magn. Mater. 322 (2010) 1198 - 1200.

  87. M. Veverka, P. Veverka, Z. Jirák, O. Kaman, K. Knížek, M. Maryško, E. Pollert, K. Závěta
    Synthesis and magnetic properties of Co1-xZnxFe2O4+γ nanoparticles as materials for magnetic fluid hyperthermia
    J. Magn. Magn. Mater. 322 (2010) 2386 - 2389.

  88. K. Knížek, J. Hejtmánek, Z. Jirák, P. Tomeš, P. Henry, G. André
    Neutron diffraction and heat capacity studies of PrCoO3 and NdCoO3
    Phys. Rev. B 79 (2009) 134103(1) - 134103(7).

  89. K. Knížek, Z. Jirák, J. Hejtmánek, P. Novák, Wei Ku,
    GGA+U calculations of correlated spin excitations in LaCoO3
    Phys. Rev. B 79 (2009) 014430(1) - 014430(8).

  90. D. P. Kozlenko, Z. Jirák, N. O. Golosova, and B. N. Kozlenko
    Magnetic ground state and the spin-state transitions in YBaCo2O5.5
    Eur. Phys. J. B 70 (2009) 327 - 334.

  91. M. Maryško, M. M. Savosta, Z. Jirák, P. Novák
    Anomalous temperature dependence of the magnetization in La0.84Sr0.16 MnO3
    J. Appl. Phys. 105 (2009) 07D716 - 07D718.

  92. J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško, M. Veverka, C. Autret
    Valence and spin states in perovskites LaCo0.95M0.05O3 (M = Mg, Ga, Ti)
    J. Magn. Magn. Mater. 320 (2008) 92 - 95.

  93. J. Hejtmánek, K. Knížek, M. Maryško, Z. Jirák, D. Sedmidubský, Z. Sofer, V. Peřina, H. Hardtdegen, C. Buchal
    On the magnetic properties of Gd implanted GAN
    J. Appl. Phys. 103 (2008) 07D107(1) - 07D107(3).

  94. Z. Jirák, J. Hejtmánek, K. Knížek, M. Veverka
    Electrical resistivity and thermopower measurements of the hole- and electron-doped cobaltites LnCoO3
    Phys. Rev. B 78 (2008) 014432(1) - 014432(8).

  95. K. Knížek, Z. Jirák, J. Hejtmánek, P. Henry, G. André
    Structural anomalies, spin transitions and charge disproportionation in LnCoO3
    J. Appl. Phys. 103 (2008) 07B703(1) - 07B703(3).

  96. M. Maryško, Z. Jirák
    Magnetization Study of the AFM-FM Coexistence in the Manganite System Pr0.5 Ca0.5-x Srx MnO 3
    Acta Phys. Polon. A 113 (2008) 143 - 146.

  97. V. Procházka, H. Štěpánková, B. Sedlák, Cz. Kapusta, K. Knížek, Z. Jirák, J. Englich, R. Řezníček
    NMR study of LaMn1-xCoxO3 perovskites
    J. Magn. Magn. Mater. 320 (2008) 12 - 15.

  98. D. Rybicki, Cz. Kapusta, W. Tokarz, H. Štepánková, V. Procházka, J. Haase, Z. Jirák, D. T. Adroja, J. F. Mitchell
    55Mn nuclear magnetic resonance study of highly Sr-doped La2-2xSr1+2xMn2O7 (x=0.5-0.8)
    Phys. Rev. B 78 (2008) 184428(1) - 184428(8).

  99. C. Autret-Lambert, Z. Jirák, M. Gervais, N. Poirot, F. Gervais, N. Raimboux, P. Simon, F. Bourée, G. André
    Electron spin resonance and neutron diffraction studies of Nd0.5-xPrxSr0.5MnO3 (x = 0.125, 0.25)
    Chem. Mater. 19 (2007) 5222 - 5229.

  100. A. Chichev, M. Dlouhá, S. Vratislav, J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško
    Neutron diffraction study of Pr0.5Ca0.5CoO3-\gamma (γ=0 and 0.07)
    Z. Kristallogr. 26 (2007) 435 - 440.

  101. A. Chichev, J. Hejtmánek, Z. Jirák, K. Knížek, M. Maryško, M. Dlouhá, S. Vratislav
    The low-temperature phase separation in Pr0.5Ca0.5CoO3
    J. Magn. Magn. Mater. 316 (2007) e728

  102. D. P. Kozlenko, L. S. Dubrovinsky, Z. Jirák, B. N. Savenko, C. Martin, S. Vratislav
    Pressure-induced antiferromagnetism and compression anisotropy in Pr0.52Sr0.48MnO3
    Phys. Rev. B 76 (2007) 094408(1) - 094408(6).

  103. D. P. Kozlenko, N. O. Golosova, Z. Jirák, L. S. Dubrovinsky, B. N. Savenko, M. G. Tucker, Y. Le Godec, and V. P. Glazkov
    Temperature and pressure-driven spin-state transitions in LaCoO3
    Phys. Rev. B 75 (2007) 064422(1) - 064422(10).

  104. M. Miclau, J. Hejtmánek, R. Retoux, K. Knížek, Z. Jirák, R. Fresard, A. Maignan, S. Hebert, M. Hervieu, and C. Martin
    Structural and Magnetic Transitions in CaMn1-xWxO3
    Chem. Mater. 19 (2007) 4243 - 4251.

  105. V. Procházka, Cz. Kapusta, M. Sikora, D. Zajac, K. Knížek, Z. Jirák, H. Štěpánková
    EXAFS study of LaMn1-xCoxO3 compounds
    J. Magn. Magn. Mater. 310 (2007) e197

  106. V. Chichev , M. Dlouhá , S. Vratislav , K. Knížek , J. Hejtmánek , M. Maryško , M. Veverka , Z. Jirák , O. Golosova , P. Kozlenko , and N. Savenko
    Structural, magnetic, and transport properties of the single-layered perovskites La2-xSrxCoO4 (x=1.0-1.4)
    Phys. Rev. B 74 (2006) 134414(1) - 134414(8).

  107. M. Dlouhá, S. Vratislav, A. Chichev, Z. Jirák
    Neutron difraction study of layered perovskite La0.6Sr1.4CoO4
    Acta Phys. Slov. 56 (2006) 181 - 184.

  108. K. Knížek , Z. Jirák , J. Hejtmánek , and P. Novák
    Character of the excited state of the Co3+ ion in LaCoO3
    J. Phys.-Condens. Mat. 18 (2006) 3285 - 3297.

  109. K. Knížek , Z. Jirák , J. Hejtmánek , M. Veverka , M. Maryško , C. Hauback , and H. Fjellvag
    Structure and physical properties of YCoO3 at temperatures up to 1000 K
    Phys. Rev. B 73 (2006) 214443(1) - 214443(6).

  110. P. Kozlenko , V. Ovsyannikov , V. Shchennikov , Z. Jirák , and N. Savenko
    Thermoelectric properties of the Pr0.8Na0.2MnO3 manganite at ultrahigh pressures of up to 20 GPa
    Phys. Solid State 48 (2006) 1741 - 1745.

  111. D. Rybicki, M. Sikora, Cz. Kapusta, P. C. Riedi, Z. Jirák, K. Knížek, M. Maryško, E. Pollert, P. Veverka
    A 55Mn NMR study of the La0.75Sr0.25MnO3 nanoparticles
    phys. status solidi c 3 (2006) 155 - 158.

  112. M. Sikora , C. Kapusta , K. Knížek , Z. Jirák , C. Autret , M. Borowiec , J. Oates , V. Procházka , D. Rybicki , and D. Zajac
    X-ray absorption near-edge spectroscopy study of Mn and Co valence states in LaMn1-xCoxO3 (x=0-1)
    Phys. Rev. B 73 (2006) 94426(1) - 94426(5).

  113. C. Autret, J. Hejtmánek, K. Knížek, M. Maryško, Z. Jirák, M. Dlouhá and S. Vratislav
    Electric transport and magnetic properties of perovskites LaMn1-xCoxO3 up to 900 K
    J. Phys.-Condens. Mat. 17 (2005) 1601 - 1616.

  114. K. Knizek , Z. Jirak, J. Hejtmanek, M. Veverka, M. Marysko, G. Maris, T. M. Palstra
    Structural anomalies associated with the electronic and spin transitions in LnCoO(3)
    Eur. Phys. J. B 47 (2005) 213 - 220.

  115. K. Knizek , P. Novak , and Z. Jirak
    Spin state of LaCoO3: Dependence on CoO6 octahedra geometry
    Phys. Rev. B 71 (2005) 54420(1) - 54420(6).

  116. C. Yaicle , F. Fauth , C. Martin , R. Retoux , Z. Jirak , M. Hervieu , B. Raveau , and A. Maignan
    Pr0.5Ca0.5Mn0.97Ga0.03O3, a strongly strained system due to the coexistence of two orbital ordered phases at low temperature
    J. Solid State Chem. 178 (2005) 1652 - 1660.

  117. C. Autret , C. Martin , M. Hervieu , A. Maignan , B. Raveau , G. Andre , F. Bouree , and Z. Jirak
    From A-type antiferromagnetism to ferromagnetism in half-doped perovskite manganites
    J. Magn. Magn. Mater. 270 (2004) 194 - 202.

  118. C. Autret , C. Martin , R. Retoux , A. Maignan , B. Raveau , G. Andre , F. Bouree , and Z. Jirak
    Coexistence of ferromagnetism and antiferromagnetism in the L0.08Ca1.92MnO4 series
    J. Magn. Magn. Mater. 284 (2004) 172 - 180.

  119. Z. Jirák, J. Hejtmánek, K. Knížek, S. Krupička, M. Maryško
    Effect of Cr doping in charge ordered Y1-xCaxMnO3 (x~0.5)
    J. Magn. Magn. Mater. 272-276 (2004) E1029

  120. K. Knížek, J. Hejtmánek, Z. Jirák, C. Martin, M. Hervieu, B. Raveau, G. André, F. Bourée
    Structure, magnetism and transport properties of Pr1-xSrxMnO3 (x = 0.45 - 0.75) up to 1200 K
    Chem. Mater. 16 (2004) 1104 - 1110.

  121. P. Kozlenko , P. Glazkov , Z. Jirak , and N. Savenko
    High pressure effects on the crystal and magnetic structure of Pr1-xSrxMnO3 manganites (x=0.5-0.56)
    J. Phys.-Condes. Matter 16 (2004) 2381 - 2394

  122. P. Kozlenko , Z. Jirak , N. Goncharenko , and N. Savenko
    Suppression of the charge Pr0.75Na0.25MnO3 at high ordered state in pressure
    J. Phys.-Condes. Matter 16 (2004) 5883 - 5895

  123. M. Marysko and Z. Jirak
    Magnetic susceptibility of a two phase manganite Pr0.925Na0.075MnO3
    J. Magn. Magn. Mater. 272 (2004) E1025

  124. D. Sedmidubsky , Z. Jirak , J. Hejtmanek , and M. Marysko
    Mn-site doped Y1-xCaxMnO3 (x=0.3-0.4) - from spin glass to FM cluster formation
    J. Magn. Magn. Mater. 272-76 (2004) 1323 - 1324.

  125. P. Kozlenko , P. Glazkov , Z. Jirak , and N. Savenko
    Structural study of Pr0.8Na0.2MnO3 at high pressure
    J. Magn. Magn. Mater. 267 (2003) 120 - 126.

  126. M. Savosta , P. Novak , and Z. Jirak
    Charge density wave in La0.84Sr0.16MnO3 revealed by Mn-55 nuclear magnetic resonance
    Phys. Rev. B 67 (2003) 100411(1) - 100411(4).

  127. C. Yaicle , C. Martin , Z. Jirak , F. Fauth , G. Andre , E. Suard , A. Maignan , V. Hardy , R. Retoux , M. Hervieu , S. Hebert , B. Raveau , C. Simon , D. Saurel , A. Brulet , and F. Bouree
    Neutron scattering evidence for magnetic-field-driven abrupt magnetic and structural transitions in a phase-separated manganite
    Phys. Rev. B 68 (2003) 224412(1) - 224412(8).

  128. M. Dlouhá, S. Vratislav, Z. Jirák, J. Hejtmánek, K. Knížek, D. Sedmidubský
    Structure and magnetic order in Y1-xCaxMnO3 (x = 0.3 and 0.5)
    Appl. Phys. A-Mater. 74 (2002) S673

  129. J. Hejtmanek , Z. Jirak , E. Pollert , D. Sedmidubsky , A. Strejc , C. Martin , A. Maignan , and V. Hardy
    Two dimensional metallic conductivity in Pr1-xSrxMnO3 antiferromagnets
    J. Appl. Phys. 91 (2002) 8275 - 8277.

  130. J. Hejtmanek , E. Pollert , Z. Jirak , D. Sedmidubsky , A. Strejc , A. Maignan , C. Martin , V. Hardy , R. Kuzel , and Y. Tomioka
    Magnetism and transport in Pr1-xSrxMnO3 single crystals (0.48 <= x <= 0.57)
    Phys. Rev. B 66 (2002) 14426(1) - 14426(8).

  131. Z. Jirak , C. Martin , M. Hervieu , and J. Hejtmanek
    Charge and spin configurations in Pr1-xCaxMnO3 (x=0.5-0.75)
    Appl. Phys. A-Mater. Sci. Process. 74 (2002) S1755 - S1757

  132. E. Pollert , Z. Jirak , J. Hejtmanek , A. Strejc , R. Kuzel , and V. Hardy
    Detailed study of the structural and magnetic transitions in Pr1-xSrxMnO3 single crystals (0.48 <= x <= 0.57)
    J. Magn. Magn. Mater. 246 (2002) 290 - 296.

  133. T. Satoh , Y. Kikuchi , K. Miyano , E. Pollert , J. Hejtmanek , and Z. Jirak
    Irreversible photoinduced insulator-metal transition in charge ordered Pr0.75Na0.25MnO3
    Phase Transit. 75 (2002) 935 - 940

  134. T. Satoh , Y. Kikuchi , K. Miyano , E. Pollert , J. Hejtmanek , and Z. Jirak
    Irreversible photoinduced insulator-metal transition in the Na-doped manganite Pr0.75Na0.25MnO3
    Phys. Rev. B 65 (2002) 125103(1) - 125103(4).

  135. M. Savosta , A. Borodin , M. Marysko , Z. Jirak , J. Hejtmanek , and P. Novak
    Ferromagnetic-antiferromagnetic transition in Pr0.51Sr0.49MnO3 manganite
    Phys. Rev. B 65 (2002) 224418(1) - 224418(4).

  136. D. Sedmidubsky , J. Hejtmanek , M. Marysko , Z. Jirak , V. Hardy , and C. Martin
    Spin glass properties of Y0.7Ca0.3MnO3 and Th0.35Ba0.37Ca0.28MnO3
    J. Appl. Phys. 91 (2002) 8260 - 8262.

  137. J. Hejtmánek, Z. Jirák, J. Šebek, A. Strejc, M. Hervieu
    Magnetic phase diagram of the charge ordered manganite Pr0.8Na0.2MnO3
    J. Appl. Phys. 89 (2001) 7413 - 7415.

  138. Z. Jirak , J. Hejtmanek , E. Pollert , C. Martin , A. Maignan , B. Raveau , M. Savosta , Y. Tomioka , and Y. Tokura
    Magnetic ground states in Pr1-xSrxMnO3 (x=0.48-0.75)
    J. Appl. Phys. 89 (2001) 7404 - 7406.

  139. S. Krupicka , Z. Jirak , J. Hejtmanek , M. Marysko , P. Novak , M. Savosta , and R. Sonntag
    Phase separation in structural and magnetic transitions in Pr0.5Ca0.5-xSrxMnO3 (x=0.15 and 0.3)
    J. Phys.-Condes. Matter 13 (2001) 6813 - 6834

  140. M. Marysko , Z. Jirak , M. Savosta , E. Pollert , Y. Tomioka , and Y. Tokura
    Magnetic phase transitions of Pr0.65Ca0.21Sr0.14MnO3 and Pr0.65Ba0.35MnO3 single crystals
    J. Magn. Magn. Mater. 226 (2001) 592 - 593.

  141. Z. Jirak , F. Damay , M. Hervieu , C. Martin , B. Raveau , G. Andre , and F. Bouree
    Magnetism and charge ordering in Pr0.5CaxSr0.5-xMnO3 (x=0.09 and 0.5)
    Phys. Rev. B 61 (2000) 1181 - 1188.

  142. C. Martin , A. Maignan , M. Hervieu , B. Raveau , Z. Jirak , M. Savosta , A. Kurbakov , V. Trounov , G. Andre , and F. Bouree
    Structural study of the electron-doped manganites Sm0.1Ca0.9MnO3 and Pr0.1Sr0.9MnO3: Evidence of phase separation
    Phys. Rev. B 62 (2000) 6442 - 6449.

  143. M. Savosta , J. Hejtmanek , Z. Jirak , M. Marysko , P. Novak , Y. Tomioka , and Y. Tokura
    Magnetic and transport properties of Pr0.65Ca0.21Sr0.14MnO3 and Pr0.65Ba0.35MnO3 single crystals
    Phys. Rev. B 61 (2000) 6896 - 6901.

  144. M. Savosta , S. Karnachev , S. Krupicka , J. Hejtmanek , Z. Jirak , M. Marysko , and P. Novak
    NMR evidence of the magnetic phase separation in Pr0.5Ca0.2Sr0.3MnO3 manganite
    Phys. Rev. B 62 (2000) 545 - 549.

  145. M. Savosta , P. Novak , M. Marysko , Z. Jirak , J. Hejtmanek , J. Englich , J. Kohout , C. Martin , and B. Raveau
    Coexistence of antiferromagnetism and ferromagnetism in Ca1-xPrxMnO3 (x <= 0.1) manganites
    Phys. Rev. B 62 (2000) 9532 - 9537.

  146. S. Krupicka , M. Marysko , Z. Jirak , and J. Hejtmanek
    Details of structural and magnetic transitions in Pr0.5Ca0.5-xSrxMnO3 perovskites
    J. Magn. Magn. Mater. 206 (1999) 45 - 67.

  147. C. Martin , A. Maignan , M. Hervieu , B. Raveau , Z. Jirak , A. Kurbakov , V. Trounov , G. Andre , and F. Bouree
    Two C-type antiferromagnets with different magnetoresistive properties: Sm0.15Ca0.85MnO3 and Pr0.15Sr0.85MnO3
    J. Magn. Magn. Mater. 205 (1999) 184 - 198.

  148. M. Dlouha , S. Vratislav , and Z. Jirak
    A neutron diffraction study of the Pr(1-x)(3+)A(x)(+)Mn(1-2x)(3+)Mn(2x)(4+)O(3) (a=K, Na) perovskites
    Physica B 241 (1997) 424 - 426.

  149. Z. Jirak , J. Hejtmanek , E. Pollert , M. Marysko , M. Dlouha , and S. Vratislav
    Canted structures in the Mn3+/Mn4+ perovskites
    J. Appl. Phys. 81 (1997) 5790 - 5792.

  150. K. Knížek, Z. Jirák, E. Pollert, F. Zounová, and S. Vratislav
    Structure and magnetic properties of Pr1-xSrxMnO3 perovskites
    J. Solid State Chem. 100 (1992) 292 - 300.