Peter Kollár

Academic degrees:

• RNDr. - 1983
  
• CSc. - 1990
  
• doc. - 1996
  
• prof. - 2009
  
• DrSc. - 2014

Professional career:

• 1978 - 1983 - University study, Faculty of Science P. J. Šafárik University, Košice, Slovakia, solid state physics, specialization - magnetism
  
• 1983 RNDr.
  
• 1990 CSc. - Faculty of Science P. J. Šafárik University, Košice, Slovakia, thesis: Surface magnetic properties of Fe-B based amorphous alloys
  
• 1996 doc.- Faculty of Mathematics and Physics, Comenius University, Bratislava, Slovakia, thesis: Magnetic properties of surface layers of af amorphous and nanocrystalline alloys
  
• 2009 prof.- Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava
  
• 2014 DrSc. – Faculty of Material Sciences and Technology in Trnava, Slovak University of Technology in Bratislava, thesis The characterization of progressive powder, compacted and composite materials with specific magnetic properties

• 1983 - 1985 - Study stay at the Department of Experimental Physics, Faculty of Science P. J. Šafárik University, Košice, Slovakia
  
• 1985 - 1990 - Research coworker at the Department of Experimental Physics, Faculty of Science P. J. Šafárik University, Košice, Slovakia
  
• 1991 - 1996 - Assistant professor at Department of Experimental Physics, Faculty of Science P. J. Šafárik University, Košice, Slovakia
  
• 1996 - 2009 - Associate professor at the Department of Condensed Matter Physics, Faculty of Science P. J. Šafárik University, Košice, Slovakia
  
• 2009 - Professor at the Department of Condensed Matter Physics, Faculty of Science P. J. Šafárik University, Košice, Slovakia

• 1991 - 1997 - Deputy head of the Department of Experimental Physics, Faculty of Science P. J. Šafárik University, Košice, Slovakia
  
• 1997 - 2011 - Head of the Department of Condensed Matter Physics (former Department of Experimental Physics), Faculty of Science P. J. Šafárik University, Košice, Slovakia
  
• 1997 - 2009 - Deputy head for academic affairs of the Institute of Physics Faculty of Science P. J. Šafárik University, Košice, Slovakia
  
• 2011- Deputy head for research and foreign relations of the Institute of Physics Faculty of Science P. J. Šafárik University, Košice, Slovakia
  

• Dean's price for educational activities, Faculty of Sciences P.J.Šafárik University in Košice, Slovakia, 2010
• Dean's price for scientific activities, Faculty of Sciences P.J.Šafárik University in Košice, Slovakia, 2011
• Price for scientific activities, Slovak Physical Society, 2015

Study abroad:

• 1989 MGU, Moscow, Russia, 2 month
  
• 1993 Universiteit van Amsterdam, Nederlanden, 1 month
  
• 1993 Westfälische Wilhelms-Universität Münster, Deutschland, 2 weeks
  
• 1994 University of Cambridge, UK, 3 weeks
  
• 1999 Technische Universität Clausthal, Deutschland, 2 weeks
  
• 2002 IFW Dresden, Deutschland, 2 weeks
  
• 2006 Universität Rostock. Deutschland, 1 week
  
• 2007 IFW Dresden, Deutschland, 2 weeks
  

Teaching:

• Present time:
  • General physics - Electricity and magnetism 4/0
  • Magnetic properties of solids 4/0
  • Physics of semiconductor devices 2/0
  • Electronics 3/0

• In the past:
  • Physics practical I-III 0/3
  • Electronics practical 0/3
  • Electronics 4/0
  • Physics 3/1
  • Magnetic materials 2/0
  • Special practical 0/3

PhD. students:
supervisor:
RNDr. Erika Fechová, PhD. - graduated 2003.
Assoc. Prof. RNDr. Adriana Zeleňáková, PhD. - graduated 2004
RNDr. Jozef Bednarčík, PhD. - graduated 2005
RNDr. Denisa Olekšáková, PhD. - graduated 2007
RNDr. Jana Füzerová, PhD. - graduated 2007
RNDr. Zuzana Birčáková, PhD. - graduated 2015
Ing. Lukáš Hegedűs - start 2009
Ing. František Onderko - start 2014

supervisor specialists:
Assoc. Prof. RNDr. Ján Füzer, PhD. - graduated 2001
RNDr. Gabriel Pavlík, PhD. - graduated 2006

Research:

• Magnetization processes of soft magnetic materials
• Magnetic properties of soft magnetic ferromagnetic materials (soft magnetic composites, amorphous and nanocrystalline materials, polycrystalline ferromagnetic FeSi materials)

Garant:

• bachelor degree, interdisciplinary (teacher) study F-X
• master degree teacher study F-X
• PhD. degree Theory of Physics Education

Collaboration:

• IFW Dresden, Germany
  
• Institute of Physics, Polish Academy of Sciences, Warsaw, Poland
  
• Department of Physics, Pulaski Technical University, Radom, Poland
  
• KFKI, Budapest, Hungary
  
• Technical University of Clausthal, Germany
  
• Hasylab, DESY, Hamburg, Germany
  

Selected publications:
Chapter in book

• P. Kollár, E. Fechová, J. Füzer, J. Kováč, P. Petrovič, V. Kavečanský, M. Konč, Structure and magnetic properties of the Fe-Cu-Nb-Si-B powder prepared by milling, Properties and Applications of Nanocrystalline Alloys from Amorphous Precursors, NATO Science Series, II Mathematics, Physics and Chemistry-Vol.184, Kluwer Academic Publishers, 2005, ISBN 1-4020-2964-0

Articles in CC journals

2010
• J. Füzer, P. Kollár, J. Füzerová, S. Roth, Soft magnetic properties of nanostructured vitroperm alloy powder cores, IEEE Transactions on Magnetics 46 (2), 2010, art. no. 5393156, pp. 471-474.
• P. Kollár, J. Füzer, R. Bureš, M. Fáberová, AC magnetic properties of Fe-based composite materials, IEEE Transactions on Magnetics 46 (2), 2010, art. no. 5393202, pp. 467-470.

2012
• J. Füzerová, J. Füzer, P. Kollár, L. Hegedüs, R. Bureš, M. Fáberová, Analysis of the complex permeability versus frequency of soft magnetic composites consisting of iron and Fe 73Cu 1Nb 3Si 16B 7, IEEE Transactions on Magnetics 48 (4) , 2012, art. no. 6172437 , pp. 1545-1548.

2013
• M. Fabián, G. Tyuliev, A. Feldhoff, N. Kostova, P. Kollár, S Suzuki, F. Saito, V. Šepelák, One-step synthesis of nanocrystalline ZnO via cryomilling , Powder Technology, 235 (2013) 395-399
• P. Kollár, Z. Birčáková, J. Füzer, R. Bureš, M. Fáberová, Power loss separation in Fe-based composite materials, Journal of Magnetism and Magnetic Materials, 327 (2013), 146-150
• D. Olekšáková, , J. Füzer, P. Kollár, S. Roth, Components of the Core Losses under Low Frequency Magnetic Field of the Bulk Ni-Fe Compacted Powder Material, Journal of Magnetism and Magnetic Materials, J. Magn. Magn.etic Mater. 333 (2013), 18-21
• J. Füzerová, J. Füzer, P. Kollár, R. Bureš, M. Fáberová, Complex permeability and core loss of soft magnetic Fe-based nanocrystalline powder cores, J. Magn. Magn. Mater. 345 (2013), 77-81
• M. Strečková, Ľ. Medvecký, J. Füzer, P. Kollár, R. Bureš, M. Fáberová, Design of novel soft magnetic composites based on Fe/resin modified with silica, Materials Letters, 101 (2013), 37-40

2014
• M. Strečková, J. Füzer, L. Kobera, J. Brus, M. Fáberová, R. Bureš, P. Kollár, M. Lauda, Ľ. Medvecký, V. Girman, H. Hadraba, M. Baťková, I. Baťko, A comprehensive study of soft magnetic materials based on FeSi spheres and polymeric resin modified by silica nanorods Materials Chemistry and Physics, 147 (2014) 649-660
• M. Strečková, J. Füzer, Ľ. Medvecký, R. Bureš, P. Kollár, M. Fáberová, V. Girman, Characterization of composite materials based on Fe powder (core) and phenol–formaldehyde resin (shell) modified with nanometer-sized SiO2, Bulletin of Materials Science, 37 (2014) 167-177
• Z. Birčáková, P. Kollár, J. Füzer, M. Lauda, R. Bureš, M. Fáberová, Influence of the resin content on the dynamic energy losses in iron-phenolphormaldehyde resin composites IEEE Trans. on Magn., 50 (2014), art.no. 6301507
• Z. Birčáková, P. Kollár, V. Vojtek, R. Bureš, M. Fáberová, Influence of Vitroperm Content on the Energy Losses in Composite Materials Based on the Mixture of Two Ferromagnets, Acta Physica Polonica A, 126 (2014) 114-115
• D. Olekšáková, J. Füzer, P. Kollár, J. Bednarčík, C. Lathe, Isobaric thermal expansion and isothermal compression of powdered NiFe based alloys studied by in-situ EDXRD, Acta Physica Polonica A, 126, (2014) 128-129
• M. Lauda, J. Füzer, J. Füzerová, P. Kollár, M. Strečková, M. Fáberová, Magnetic properties of soft magnetic FeSi composite powder cores, Acta Physica Polonica A, 126 (2014) 144-145
• P. Kollár, V. Vojtek, Z. Birčáková, J. Füzer, M. Fáberová, R. Bureš, Steinmetz law in iron - phenolformaldehyde resin soft magnetic composites, J. Magn. Magn. Mater. 353 (2014) 65-70.

2015
• P. Kollár, Z. Birčáková, V. Vojtek, Ján Füzer, Radovan Bureš, Mária Fáberová, Dependence of demagnetizing fields in Fe-based composite materials on magnetic particle size and the resin content, J. Magn. Magn. Mater., 388 (2015) 76-81
• J. Füzer, S. Dobák, P. Kollár, Magnetization dynamics of FeCuNbSiB soft magnetic ribbons and derived powder cores, J. Alloys and Comp., 628 (2015) 335-342
• M. Streckova, H. Hadraba, R. Bures, M. Faberova, P. Roupcova, I. Kubena, L. Medvecky, V. Girman, P. Kollar, J. Fuzer, E. Cizmar, Chemical synthesis of nickel ferrite spinel designed as an insulating bilayer coating on ferromagnetic particles, Surface and Coatings Technology, 270 (2015) 66-76
• M. Strečková, R. Bureš, M. Fáberová, Ľ. Medvecky, J. Füzer, P. Kollár, A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins, Chinese Journal of Chemical Engineering, 23 (2015) 736-743
• Z. Birčáková, P. Kollár, B. Weidenfeller, J. Füzer, M. Fáberová, R. Bureš, Reversible and irreversible DC magnetization processes in the frame of magnetic, thermal and electrical properties of Fe-based composite materials, J. of Alloys and Comp., 645, (2015) 283-289
• S. Dobák, J. Füzer, P. Kollár, Effect of a DC transverse magnetic field on the magnetization dynamics in FeCuNbSiB ribbons and derived nanostructured powder cores, J. of Alloys and Comp., 651 (2015), 237-244

Textbooks

• P. Kollár, J. Füzer, A Zeleňáková, D. Olekšáková, Základné fyzikálne praktikum II, Vydavateľstvo UPJŠ v Košiciach, 2006, ISBN 80-7097-656-X

Hobbies: Mountain biking, FM receivers, dx-ing, music.