1. 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
    Journal of Magnetism and Magnetic Materials 475 (2019) 429-435.
  2. K. Knížek, P. Levinský, J. Hejtmánek
    LDA+U Calculation of Electronic and Thermoelectric Properties of Doped Tetrahedrite Cu12Sb4S13
    Journal of Electronic Materials 48 (2019) 2018-2021.
  3. K. Knížek, Z. Jirák, J. Hejtmánek, M. Maryško, J. Buršík
    Structure and properties of novel cobaltates Ln0.3CoO2 (Ln = La, Pr, and Nd)
    Journal of Applied Physics 111 (2012) 07D707(1)-07D707(3).
  4. K. Knížek, J. Hejtmánek, M. Maryško, Z. Jirák, J. Buršík
    Stabilization of the high-spin state of Co3+ in LaCo1-xRhxO3
    Physical Review B 85 (2012) 134401(1)-134401(7).
  5. M. Maryško, Z. Jirák, J. Hejtmánek, K. Knížek
    Glassy ferromagnetism and phase separation in Pr0.5Ca0.5CoO3
    Journal of Applied Physics 111 (2012) 07E110(1)-07E110(3).
  6. H. Fujishiro, T. Naito, S. Ogawa, N. Yoshida, K. Nitta, J. Hejtmánek, K. Knížek, Z. Jirák
    Valence Shift of Pr Ion from 3+ to 4+ in (Pr1-yYy)..0.7Ca0.3CoO3 Estimated by X-Ray Absorption Spectroscopy
    Journal of the Physical Society of Japan 81 (2012) 064709(1)-064709(5).
  7. 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+$\delta$
    Journal of Applied Physics 111 (2012) 07D715(1)-07D715(3).
  8. K. Knížek, Z. Jirák, J. Hejtmánek, P. Henry, G. André
    Structural anomalies, spin transitions and charge disproportionation in LnCoO3
    Journal of Applied Physics 103 (2008) 07B703(1)-07B703(3).
  9. 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
    Journal of Applied Physics 103 (2008) 07D107(1)-07D107(3).
  10. M. Kašpar, P. Bílková, A. Bubnov, V. Hamplová, V. Novotná, M. Glogarová, K. Knížek, D. Pociecha
    New chlorine substituted liquid crystals possessing frustrated TGBA and SmQ phases
    Liquid Crystals 35 (2008) 641-651.
  11. V. Procházka, H. Štěpánková, B. Sedlák, Cz. Kapusta, K. Knížek, Z. Jirák, J. Englich, R. Řezníček
    NMR study of LaMn1-xCoxO3 perovskites
    Journal of Magnetism and Magnetic Materials 320 (2008) 12-15.
  12. 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)
    Journal of Magnetism and Magnetic Materials 320 (2008) 92-95.
  13. Z. Jirák, J. Hejtmánek, K. Knížek, M. Veverka
    Electrical resistivity and thermopower measurements of the hole- and electron-doped cobaltites LnCoO3
    Physical Review B 78 (2008) 014432(1)-014432(8).
  14. M. Sikora, K. Knížek, Cz. Kapusta, P. Glatzel
    Evolution of charge and spin state of transition metals in the LaMn1-xCoxO3 perovskite series
    Journal of Applied Physics 103 (2008) 07C907(1)-07C907(3).
  15. P. Tomeš, J. Hejtmánek, K. Knížek
    On the La2-xSrxCoRuO6 double perovskites: Crystal structure, magnetic properties and transport.
    Solid State Sciences 10 (2008) 486-490.
  16. R. Vidya, P. Ravindran, K. Knížek, A. Kjekshus, H. Fjellvåg
    Density Functional Theory Studies of Spin, Charge, and Orbital Ordering in YBaT2O5 (T = Mn, Fe, Co).
    Inorganic Chemistry 47 (2008) 6608-6620.