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dr hab. eng. Jacek Ćwik - head of the DLTS

Jacek Cwik

dr hab. eng. Jacek Ćwik

Jacek Ćwik from 2018 is acting deputy head of the Division of Low Temperature and Superconductivity at the Institute of Low Temperature and Structure Research Polish Academy of Sciences in Wroclaw. He started his scientific career in 2000 after graduating in Material Engineering Technical University of Wroclaw, Faculty of Fundamental Problems of Technology in Poland. After graduation, he worked as an Assistant at the International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw. In 2006 he defended his doctoral dissertation - Institute of Inorganic Chemistry and Rare Earth Elements, Wroclaw, Poland Thesis : “Structural and physical properties of HoNi2 – MNi2 , (M = Sc, Y, La, Lu)”. In 2012 he became group leader at the International Laboratory of High Magnetic Fields and Low Temperatures involved in the study of materials with significant effects induced by the magnetic field. In 2016 he obtained his habilitation in Physics Sciences Institute of Molecular Physics Polish Academy of Sciences, Poznan, Poland – “The influence of modifying composition on magnetic and magnetocaloric properties for chosen solid solutions of Laves phase structure”. Since 2017 he has been working as an assistant professor at the Institute of Low Temperature and Structure Research Polish Academy of Sciences in Wroclaw.

His scientific interests are focused on the fabrication of intermetallic compounds with specific magnetic properties via the arc melting method, measurements of their thermomagnetic and thermodynamic properties, he is the co-author of a unique experimental system for direct measurements of the magnetocaloric effect using high magnetic fields generated by resistance Bitter type-magnet.

[author of over 110 publications,  h-index = 20, cited>1200, 2 patent applications]

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Academic career:

2016 -  Habilitation in Physics Sciences Institute of Molecular Physics Polish Academy of Sciences, Poznan, Poland Thesis “The influence of modifying composition on magnetic and magnetocaloric properties for chosen solid solutions of Laves phase structure”
2006 - Doctor of Sciences in Chemistry Technical University of Wroclaw, Department of Chemistry, Institute of Inorganic Chemistry and Rare Earth Elements, Wroclaw, Poland Thesis : “Structural and physical properties of HoNi2 – MNi2, (M = Sc, Y, La, Lu)”
1999 – M.Sc. in Material Engineering Technical University of Wroclaw, Department for Fundamental Problems of Technology, Wroclaw, Poland Thesis: “Recovery of gold and PGM from low grade copper of LGOM by cyanide leaching”

Work experience:

2023 - head of the Division of Low Temperature and Superconductivity, Institute of Low Temperature and Structure Research Polish Academy of Sciences in Wroclaw
2018 - acting deputy head of the Division of Low Temperature and Superconductivity, Institute of Low Temperature and Structure Research Polish Academy of Sciences in Wroclaw
2017 - assistant professor, Institute of Low Temperature and Structure Research Polish Academy of Sciences in Wroclaw
2012 - head of the research group, International Laboratory of High Magnetic Fields and Low Temperatures (involved in the study of materials with significant effects induced by the magnetic field)
2007 - assistant professor, International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw
2000 – research assistant, International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw

Membership, service and organizational activities:

  • Membership of the Polish Physical Society.
  • Membership of the National Committee of the International Committee of Phase Diagrams APDIC.
  • Reviewing publications in international and national journals.
  • Participation in the meetings of the Scientific Council of the MLSPMiNT in Wroclaw.

Awards:

  • Winner of the Polish Academy of Sciences and the Russian Academy of Sciences for the award for outstanding scientific achievements resulting from research carried out by Polish and Russian scientists. "New functional magnetic materials based on high purity compounds of rare earth elements and transition metals", Warsaw 2013.
  • Award of the Scientific Council of the International Laboratory of High Magnetic Fields and Low Temperatures for distinguished doctoral dissertation "The structure and physical properties of the solid solutions MNi- HoNi (M = Sc, Y, La, Lu)", Wroclaw 2007.

Selected invited and plenary lectures:

  • “High Field Dependence of the Magnetocaloric Effect in Laves Phase RNi2 Intermetallic Compounds.”12th International Advances in Applied Physics & Materials Science Congress & Exhibition (APMAS), 13-19.10.2022, Oludeniz, Turcja.
  • “Magnetocaloric properties of multicomponent laves phase compounds and their composites” 8th International Conference Functional Nanomaterials and High-Purity Substances 05-09 October, 2020,  Suzdal, Russia.
  • "Magnetic properties and magnetocaloric effect in low temperature ordered Tb1-xDyxNi2 intermetallic compounds” 20th International School On Condensed Matter Physics, 3-7 September 2018, Varna, Bulgaria.
  • "High magnetic field dependence of the magnetocaloric parameters in second-order magnetic transition Laves phase compounds" 19th International School On Condensed Matter Physics, 30th August 2016, Varna, Bulgaria.
  • “Magnetic and magnetocaloric properties of Laves phase compounds in high magnetic fields” Magnet 2017, 5th Italian Conference on Magnetism, September 13th -15th, Assisi, Italy
  • „High Field Dependence of the Magnetocaloric Effect in Laves Phase Compounds” SUPERSTRIPES 2016, Quantum in Complex Matter: Superconductivity, Magnetism, Ferroelectricity, 20th Anniversary Stripes Conferences, June 23-29, 2016 Ischia, Italy.
  • "Magnetism and magnetocaloric effect in selected Laves-phase compounds" Institute of Molecular Physics Polish Academy of Sciences, Poznań, 2015, Poland.
  • "Magnetic and magnetocaloric properties in selected Laves-phase solid solutions" Faculty of Physics, University of Bialystok, Bialystok, 2015, Poland.
  • "Advanced materials for MC refrigerator; demonstration and prototyping" LG Chem, Moscow, 2015, Russia.
  • "High Magnetic Fields" 10 Anniversary Workshop of the Institute of Labour Medicine, Lodz, 2014, Poland.
  • „Experimental Study of the Magnetocaloric Effect in the Pseudo Binary Laves Phase Compounds” 4th International Conferences on Superconductivity and Magnetism, 27 April-2 May 2014, Antalya, Turkey.
  • „Magnetism and magnetocaloric effect in multicomponent Laves phase compounds” 7th Joint European Magnetic Symposia, 25-30 August 2013, Rhodes, Greece.

Selected papers 2018-2022:

  1. G. Politova, I. Tereshina, I. Ovchenkova, A.R. Aleroev, Y. Koshkid’ko, J. Ćwik, H. Drulis „Investigation of Magnetocaloric Properties in the TbCo2-H System” CRYSTALS vol.12 nr 12 (2022) 1783
  2. D. N. Petrov, N. T. Dang, T. L. Phan, B. W. Lee, J. Ćwik, I. Koshkidko, T. V. Manh, H. R. Park, S. C. Yu. “Metamagnetism and Magnetocaloric Effect of LiPr(PO3)4 Crystal” JOURNAL OF ELECTRONIC MATERIALS 51 (2022) 4479–4485
  3. I. Koshkidko, E.T. Dilmieva, A.P. Kamantsev, J. Ćwik, K. Rogacki, A.V. Mashirov, V.V. Khovaylo, C. Salazar Mejia, M.A. Zagrebin, V.V. Sokolovskiy, V.D. Buchelnikov, P. Ari-Gur, P. Bhale, V.G. Shavrov, V.V. Koledov “Magnetocaloric effect and magnetic phase diagram of Ni-Mn-Ga Heusler alloy in steady and pulsed magnetic fields”JOURNAL OF ALLOYS AND COMPOUNDS 904 (2022) 164051
  4. A. P. Kamantsev, I. Koshkidko, S. V. Taskaev, V. V. Khovaylo, A. V. Koshelev, J. Ćwik, V. G. Shavrov “Inverse Magnetocaloric Effect and Kinetic Arrest Behavior in As-Cast Gd2In at Cryogenic Temperatures” JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 35 (8) (2022) 2181-2186.
  5. J. Ćwik, Y. Koshkid’ko, K. Nenkov, E. Tereshina-Chitrova, M. Małecka, B. Weise, K. Kowalska „Magnetocaloric performance of the three-component Ho1-xErxNi2 (x = 0.25, 0.5, 0.75) Laves phases as composite refrigerants” SCIENTIFIC REPORTS 12 (2022) 1.
  6. J. Ćwik, Y. Koshkid’ko, K. Nenkov, E. Tereshina-Chitrova, B. Weise, K. Kowalska “Low-Temperature Magnetothermodynamics Performance of Tb1‑xErxNi2 Laves-Phases Compounds for Designing Composite Refrigerants” CRYSTALS vol.12, nr 7 (2022) 931.
  7. J. Ćwik Intermetallic Compound (2021) MDPI, ISBN 9783036501383
  8. M. Pasturel, M. Szlawska, J. Ćwik, D. Kaczorowski, A.P. Pikul „Antiferromagnetic ordering in the ternary uranium germanide UNi1–xGe2: Neutron diffraction and physical properties studies” Intermetallics 131 (2021) 107112
  9. Y.Y. Yu, D.N. Petrov, Phan The Long, K.C. Park, J. Ćwik, P.T. Phong, B.T. Huy “Electronic structure and large magnetocaloric effect in GdVO4 nanocrystals” Journal of Alloys and Compounds 885 (2021) 161002
  10. N.Yu. Pankratov, I.S. Tereshina, G.A. Politova, T.A. Aleroeva, A.V. Filimonov, P. Yu. Vanina, O.A. Alekseeva, J. Ćwik, Yu.S. Koshkid’ko, A.S. Ilyushin “ Features of magnetostriction behavior of the intermetallic compound Sm0.2Y0.8Fe2 near the spin reorientation transitions” Journal of Magnetism and Magnetic Materials 527 (2021) 167728
  11. S.A. Nikitin, N. Yu. Pankratov, A.I. Smarzhevskaya, J. Ćwik, Yu. S. Koshkid’ko, A. Yu. Karpenkov, D. Yu. Karpenkov, Yu. G. Pastushenkov, K. Nenkov, K. Rogacki “The influence of ferrimagnetic structure on magnetocaloric effect in Dy2Fe10Al7 compound”Journal of Alloys and Compounds 854 (2021) 156214
  12. J. Ćwik, Y. Koshkid’ko, M. Małecka, B. Weise, M. Krautz, A. Mikhailova, N. Kolchugina ”Magnetocaloric prospects of mutual substitutions of rare-earth elements in pseudobinary Tb1−xHoxNi2 compositions (x = 0.25–0.75)” Journal of Alloys and Compounds 886 (2021) 161295
  13. J. Ćwik, Y. Koshkid’ko, K. Nenkov, E. Tereshina-Chitrova, N. Kolchugina “Correlation between the structure and thermomagnetic properties of pseudo-binary (Tb,Er)Ni2 solid solutions” Journal of Alloys and Compounds 859 (2021) 157870
  14. J. Ćwik, Y. Koshkid’ko, K. Nenkov, A. Mikhailova, M. Małecka, T. Romanova, N. Kolchugina, and N. A. de Oliveira “Experimental and theoretical analysis of magnetocaloric behavior of Dy1−xErxNi2 intermetallics (x = 0.25, 0.5, 0.75) and their composites for low-temperature refrigerators performing an Ericsson cycle” PHYSICAL REVIEW B 103 (2021) 214429
  15. I. A. Ovchenkova , S. A. Nikitin , I. S. Tereshina , A. Yu. Karpenkov , Y. A. Ovchenkov , J. Ćwik, Yu. S. Koshkid’ko , and H. Drulis “ Hydrogen-induced extremely large change in Curie temperatures in layered GdTSiH (T = Mn, Fe, Co)” J. Appl. Phys. 128 (2020) 143903
  16. G.A. Politova, I.S. Tereshina, J. Ćwik “Multifunctional phenomena in Tb-Dy-Gd(Ho)-Co(Al) compounds with a Laves phase structure: Magnetostriction and magnetocaloric effect” Journal of Alloys and Compounds 843 (2020) 155887
  17. J. Ćwik Special Issue “Intermetallic Compound” Crystals 10(11) (2020) 1067
  18. Y. Koshkid’ko, S. Pandey, J. Ćwik, I. Dubenko, A. Aryal, A. Granovsky, D. Szymanski, S. Stadler, E. Lähderanta, N. Ali “Relaxation phenomena in adiabatic temperature changes near magnetostructural transitions in Heusler alloys” Journal of Alloys and Compounds, 821 (2020) 153402
  19. J. Ćwik, Y. Koshkid'ko, N. Kolchugina, K. Nenkov, N.A. de Oliveira “Thermal and magnetic effects in quasi-binary Tb1-xDyxNi2 (x = 0.25, 0.5, 0.75) intermetallics” Acta Materialia 173 (2019) 27-33
  20. N.T. Dang, D.P. Kozlenko, D.N. Petrov, J. Ćwik, G. Kim, W.H. Shon, J.S. Rhyee, S.C. Yu, P.T. Long “Magnetic field driven critical behavior in bulk Gd” Journal of Applied Physics, Volume 125, Issue 15, (2019) 153903
  21. S.A. Nikitin, T.I. Ivanova, A.I. Zvonov, Yu.S. Koshkid'ko, J. Ćwik, K. Rogacki “Magnetization, magnetic anisotropy and magnetocaloric effect of the Tb0.2Gd0.8 single crystal in high magnetic fields up to 14 T in region of a phase transition” Acta Materialia 161 (2018) 331-337
  22. J. Ćwik, Y. Koshkid'ko, N.A. de Oliveira, A. Mikhailova, K. Nenkov “Effect of composition changes on the structural, magnetic and thermodynamic properties in Tb1‑xDyxNi2 intermetallic compounds” Journal of Alloys and Compounds 769 (2018) 588-596
  23. J. Ćwik , Y. Koshkid'ko, K. Nenkov, E.A. Tereshina, K. Rogacki “Structural, magnetic and magnetocaloric properties of HoNi2 and ErNi2 compounds ordered at low temperatures” Journal of Alloys and Compounds 735 (2018) 1088-1095

SCIENTIFIC INTERESTS:

  • Synthesis and research of the Laves phase and other intermetallic compounds with specific magnetic properties
  • Study of the thermomagnetic and thermodynamic properties of intermetallic compounds in polycrystalline and single crystal form
  • Magnetocaloric materials: binary and pseudo-binary Laves phase intermetallic compounds, Heusler alloys
  • Functional magnetic materials based on high purity compounds of rare earth elements and transition metals  
  • Creation of a unique measurement systems

See also

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