Valentin V. Laguta, DrSc


Affiliation:             Leading Senior Scientist, Institute of Physics AS CR, Cukrovarnicka 10, 16253 Prague (Department of Physics of Optical Materials)

                               phone: 220 318 497


Academic education

1977                       M. Sc. (Honor Degree) in Radiophysics ( Micro- and Cryoelectronics), Kiev State University

1988                       Candidate of Sciences (Ph.D., Physics and Mathematics) - Institute for Problems of Material Science, Ukrainian National Academy of Sciences, Kiev.

                               Title: “Investigation of defect structure of incipient ferroelectric KTaO3 by radiospectroscopy methods (ESR and ENDOR)”.

2006                       Doctor of Sciences (Habilitation, Physics and Mathematics) - Institute for Problems of Material Science, Ukrainian National Academy of Sciences, Kiev.

                               Title: “Structure defects of crystalline oxide materials with special electro-physical properties”.

Work abroad and fellowships

1998                       I. Physikalisches Institut der Justus-Liebig-Universitat, Giessen, Germany.

2000-2001              Dipartimento di Fisica “A. Volta” of the University of Pavia, Italy, Landau Network - Centro Volta - Cariplo Foundation fellowship.

2003                       NATO Program Science fellowship.

2004                       I. Physikalisches Institut der Justus-Liebig-Universitat, Giessen, Germany.

1999, 2002, 2004-2009           Jozef Stefan Institute, Ljubljana, Slovenia.

From 2006              Adjunct Professor of the Jozef Stefan International Postgraduate School, Ljubljana, Slovenia

Acts as referee of Phys. Rev. Lett., Phys. Rev. B, Physica status solidi.


IAA100100810 GA AV ČR: “Energy trapping processes in novel complex oxide scintillations” (2008-2011).

SAFMAT- Analysis of functional materials (2009-2015)

Collaborative Projects

Project coordinator of NATO Linkage grant: „Ce-doped aluminum perovskite and garnets single crystal scintillators“ (2001-2002).

Project coordinator of INTAS No. 04-78-7083 project: „Ce-doped aluminium perovskite and garnet single crystal and single crystalline film scintillators for high spatial resolution detectors” (2005-2006).

Research experience 

            The field of activity includes experimental studies of intrinsic, impurity, radiation and light-induced defects in solids; physical properties of thin films and nanomaterials; local structure and ion dynamics in chemically disordered crystalline materials. Electron Spin Resonance, Nuclear Magnetic Resonance and Electron Nuclear Double Resonance methods are used for this purpose.

In recent years a great part of activity was directed to understanding the nature and local structure of electron and hole traps in scintillation crystals and processes of electron and hole localization (autolocalization) in oxide materials.

            NMR investigations were devoted to clarification of local properties of chemically disordered perovskite systems and microscopic mechanisms of phase transitions in perovskite ferroelectrics.

Current research interest

            Defects and radiation-induced phenomena in scintillation materials, investigation of nanoparticles and nanosized effects in solids, physical properties of thin films and layers, coexistence of magnetic and ferroelectric ordering in multiferroics.


Published more than 140 original papers in refereed international journals. The publications received more than 750 citations (auto citations excluded) in the international literature till end of 2009 year.

List of selected publications

1.     Laguta V.V., Rosa J., Zaritskii M.I., Nikl M., Usuki Y. Polaronic (WO4)3- centers in PbWO4 single crystals. J. Phys.: Condens. Matter 10, 7293-7302 (1998).

2.     Laguta V.V., Martini M., Vedda A., Nikl M., Mihokova E., Bohacek P., Rosa J., Hofstaetter A., Meyer B.K, Usuki Y. Photoinduced Pb+ center in PbWO4: Electron spin resonance and thermally stimulated luminescence study. Phys. Rev. B., Vol. 64, P. 165102-1-8 (2001).

3.     Zalar B., Laguta V.V., Blinc R. NMR evidence for the coexistence of order-disorder and displacive components in barium titanate. Phys. Rev. Lett., Vol. 90, P. 037601-1-4 (2002).

4.     Laguta V.V., Martini M., Vedda A., Rosetta E., Nikl M., Mihokova E., Rosa J., Usuki Y. Electron traps related to oxygen vacancies in PbWO4. Phys. Rev. B 67, P. 205102-1-8 (2003).

5.     Blinc R., Laguta V.V., Zalar B. Field cooled and zero field cooled 207Pb NMR and the local structure of relaxor PbMg1/3Nb2/3O3 . Phys. Rev. Lett., 91, P. 247601-1-4 (2003).

6.     Laguta V.V., Vedda A., Di Martino D., Martini M., Nikl M., Mihokova E., Rosa J., Usuki Y. Electron capture in PbWO4: Mo and PbWO4: Mo,La single crystals: ESR and TSL study. Phys. Rev. B 71, 235108-1-10 (2005).

7.     Laguta V.V., Slipenyuk A.M., Bykov I.P., Glinchuk M.D., Maglione M., Michau D., Rosa J., Jastrabik L. Electron spin resonance investigation of oxygen-vacancy-related defects in BaTiO3 thin films. Appl. Phys. Lett, Vol. 87, P. 022903-1-3 (2005).

8.     Blinc R., Zalar B., Laguta V.V., Itoh M. Order-disorder component in the phase transition mechanism of 18O enriched strontium titanate. Phys. Rev. Lett., Vol. 94, P. 147601-1-4 (2005).

9.     M. Nikl, V.V. Laguta, and A. Vedda, Complex oxide scintillators: Material defects and scintillation performace. Phys. status solidi (b) 245, 1701 – 1722 (2008). Feature Article. 

10.   J.F. Scott, H.J. Fan, S. Kawasaki1, J. Banys, M. Ivanov, J. Macutkevic, R. Blinc, V.V. Laguta, P. Cevc, J. Liu, and A. Kholkin, Terahertz emmision from tubular Pb(Zr,Ti)O3 nanostructures. Nano Lett. 8, 4404 – 4409 (2008).