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Jirák Zdeněk

RNDr., CSc.
Born March 28, 1945 in Hradec Králové

  • Magnetism in solid state physics, neutron diffraction
  • Member of Learned Society since 2003

Educational and professional preparation:

  • 1963, graduate, academic secondary school, Hradec Králové;
  • 1963-1968, Faculty of Mathematics and Physics, Charles University;
  • 1973, CSc. Institute of Solid State Physics, CSAS;
  • 1974, RNDr., FMP CU

Employment and academic positions:

  • 1969-1973, doctoral studies, Institute of Solid State Physics CSAS;
  • 1974-present, research scientist, Institute of Physics, AS CR (successor to Institute of Solid State Physics)

Membership and positions in international organizations and societies:

  • Member, Committee for Coordination, Cooperation of Czech Republic with Joint Institute of Nuclear Research, Dubna, Russia

Selected publications:

  • Z. Jirák, S. Krupička, Z. Šimša, M. Dlouhá, S. Vratislav: Neutron diffraction study of Pr1-xCaxMnO3 perovskites. J. Magn. and Magn. Mater. 53, 153-166 (1985)
  • Z. Jirák, F. Damay, M. Hervieu, C. Martin, B. Raveau: Magnetism and charge ordering in Pr0.5CaxSr0.5-xMnO3 (x = 0.09 and 0.5). Phys. Rev. B61, 1181-1188 (2000)
  • Z. Jirák, J. Hejtmánek, K. Knížek, M. Maryško, E. Pollert, M. Dlouha, S. Vratislav, R. Kuzel, M. Hervieu: Structure and magnetism in Pr1-xNaxMnO3 perovskites
    (0 < x < 0.2). J. Magn. Magn. Mater. 250, 275-287 (2002)
  • Z. Jirák: The representation analysis of cooperative Jahn-Teller ordering. Phys. Rev. B35, 5437-5445 (1987)
  • Z. Jirák: A group-theoretical approach to the orbital ordering in crystals with Eg and T2g ions. Phys. Rev. B 46, 8725-8732 (1992)
  • Z. Jirák, S. Vratislav, V. Bosácek: A neutron diffraction study of H,Na-Y zeolites. J. Phys. Chem. Solids 41, 1089-1095 (1980)
  • A. I. Beskrovnyi, M. Dlouhá, Z. Jirák, S. Vratislav, E. Pollert: Neutron diffraction study of the modulated structure of Bi2(Sr,Ca)3Cu2O8+g. Physica C 166, 79-86 (1990)
  • M. M. Savosta, P. Novák, Z. Jirák, J. Hejtmánek, M. Maryško: Temperature Dependence of 55Mn NMR in Pr0.7Ca0.15Sr0.15MnO3 and Pr0.7Ba0.3MnO3 Ferromagnetic Manganites. Phys. Rev. Letters 79, 4278-4281 (1997)
  • M. M. Savosta, P. Novák, Z. Jirák: Charge density wave in La0.84Sr0.16MnO3 revealed by 55Mn NMR. Phys. Rev. B 67, 100411 (2003)
  • Z. Jirák, J. Hejtmánek, K. Knížek, M. Maryško, C. Martin, A. Maignan, M. Hervieu: The magnetoresistive behavior of Cr-doped manganites Pr0.44Sr0.56MnO3. J. Appl. Phys. 93, 8083-8085 (2003)

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News

26.06.20

Reaction to the case of Tomáš Hudlický: Members of the Learned Society of the Czech Republic support the freedom of expression

„We believe that free exchange of ideas is a key condition for the pursuit of truth and that the honest opinions should be scrutinized, challenged or rebutted but not censored or suppressed,“ say 45 members of the Learned Society in a statement regarding the retracted opinion paper by Prof. Tomáš Hudlický.

24.06.20

The letter by Jan Konvalinka to the President and Vice-Chancellor of the Brock University regarding the retracted article of Prof. Tomáš Hudlický

Opinions could and should be challenged, questioned or refuted but never silenced. In order to be able to think, we have to have the right to inquire, question and even offend or be mistaken,” writes Assoc. Prof. Jan Konvalinka, a biochemist at the IOCB Prague and the Vice-Rector of the Charles University, to Gervan Fearon.

27.11.19

Prof Miroslav Bárta receives the Česká hlava National Government Award

Learned Society member, Prof. Mgr. Miroslav Bárta, Dr. (Charles University Faculty of Arts) received the Česká hlava (Czech Head) National Government Award on 25 November 2019. A renowned Czech Egyptologist and archaeologist, Professor Bárta researches the history of ancient civilisations, the human relationship to the natural environment, and also for many years the evolution of complex societies. He leads the Czech Institute of Egyptology for archaeological and environmental research in Egypt and Sudan. His principal research interest is the period of the pyramid builders of the Old Kingdom.