Department of Solid State Physics

Staff scientists

• Prof. dr hab. Czesław Kapusta
• Dr. Ewa Japa
• MSc. Andrzej Lemański
• Dr. Jan Michalik
• Dr. Janusz Przewoźnik
• Dr. Damian Rybicki
• Dr. Krystyna Schneider
• Dr. Marcin Sikora
• Dr. Jan Żukrowski

PhD Students

• MSc. Paulina Seremak-Peczkis
• MSc. Joanna Stępień
• MSc. Aleksandra Szkudlarek

MSc Students

• Kamila Biernacka
• Karolina Gąska
• Jakub Korpała
• Dorota Szepietowska
• Julita Śliwińska
• Wojciech Zajączkowski

Research Subjects

• Magnetic and electronic properties of perovskites studied with NMR, Mossbauer Effect and
  synchrotron radiation based X-ray spectroscopy techniques : XAFS, XMCD, XES, RIXS.
  Materials studied: “colossal magnetoresistive” manganites, double perovskites, Ruthenium-hybrid cuprates Problems: charge- and spin dynamics, electronic and magnetic phase segregation, spin- and orbital moments of individual elements, influence of hydrostatic pressure and relation to the bulk magnetic and electronic transport properties of bulk samples and thin films.
• Individual site magnetic properties of expanded lattice intermetallics: RE - 3d compounds
  containing light interstitial elements H, N, C.
  Materials studied: RE₂Fe₁₇(N,C,H)_x and RE₂Fe₁₄BH_x permanent magnet materials,
  REFe₂Hx and REMn₂H_x compounds Problems: individual site electronic and magnetic properties: magnetic moments and their coupling, individual site contributions to the magnetocrystalline anisotropy, impact of light interstitial atoms on these properties, influence of hydrostatic pressure and relation to the bulk magnetic and anisotropic properties.

Equipment

• NMR spectrometer 1-600 MHz for study of magnetic materials, closed cycle refrigerator (3-300K), 7 Tesla superconducting magnet
• Quantum Design physical property measurement system, 9 Tesla, 2-400(900) K
• Open projects and collaborations with synchrotron light laboratories: ALS, Elettra, ESRF, HASYLAB
• Mossbauer spectrometers (constant acceleration) with: continuous flow cryostat (4.2-300K), closed cycle refrigerator (15-300K), high temperature furnace (300-1100K), top loading cryostat (4.2-300K), arc melting furnace, isotopes: ⁵⁷Fe, ¹¹⁹Sn, ¹⁵¹Eu, ¹⁶¹Dy, ¹⁶⁹Tm, cryostat for measurements with cooled ¹⁵⁵Gd source

Recent publications

• M. Sikora, O. Mathon, P. van der Linden, J.M. Michalik, J.M. de Teresa, Cz. Kapusta, S. Pascarelli
  Field-induced magnetostructural phase transition in double perovskite Ca₂FeReO₆ studied via x-ray magnetic circular dichroism
  Physical Review B 79 (2009) 220402 (link)
• Rybicki D., Haase J., Greven M., Yu G., Li Y., Cho Y., Zhao X.
  Spatial Inhomogeneities in Single-Crystal HgBa2CuO4+delta from Cu-63 NMR Spin and Quadrupole Shifts
  Journal of Superconductivity and Novel Magnetism 22 (2009) 179-183 (link).
• A. Błachowski, K. Ruebenbauer, J. Żukrowski
  Spin- and charge density around Rh impurity in alpha-Fe studied by ⁵⁷Fe Mössbauer spectroscopy
  Journal of Alloys and Compounds 477 (2009) 4–7 (link).
• M. Kąc, J. Żukrowski, M. Toulemonde, R. Kruk, V. Tokman, A. Polit, Y. Zabila, A. Dobrowolska, O. Synashenko, M. Marszałek
  Swift iodine ion modification of the structural and magnetotransport properties of Fe/Cr systems
  Nuclear Instruments and Methods in Physics Research B 267 (2009) 925–930 (link).
• A. Błachowski, K. Ruebenbauer, J. Żukrowski, J. Przewoźnik
  Spin and charge density on iron nuclei in the BCC Fe–Mo alloys studied by ⁵⁷Fe
  Mössbauer spectroscopy
  Journal of Alloys and Compounds 482 (2009) 23–27 (link).
• Dawid Pinkowicz, Robert Podgajny, Robert Pełka, Wojciech Nitek, Maria Bałanda, Magdalena Makarewicz, Mariusz Czapla, Jan Żukrowski, Czesław Kapusta, Dariusz Zając, Barbara Sieklucka
  Iron(II)-octacyanoniobate(IV) ferromagnet with T_C 43 K
  Dalton Trans., 2009, 7771–7777 (link)
• M.J. Szczerba, J. Przewoźnik, J. Żukrowski, Cz. Kapusta, M.S. Szczerba, B. Major
  The influence of high temperature plastic deformation on magnetic properties of Ni₂MnGa type single crystals
  Archives of Metallurgy and Materials 54 (2009) 439 (pdf).
• R. Bacewicz, A. Pietnoczka, M. Sikora
  High energy resolution fluorescence detected X-ray absorption at Mn K edge in Cu-III-S₂:Mn (III = Al, Ga, In) chalcopyrites
  J. Phys.: Conf. Ser. 190 (2009) 012067 (pdf).
• P. Seremak-Peczkis, K. Schneider, W. Zajączkowski, Cz. Kapusta, D.A. Zając, P. Pasierb, M. Bućko, E. Drożdż-Cieśla, M. Rękas
  XAFS study of BaCe1-xTixO3 and Ba1-yCe1-xYxO3 protonic solid electrolytes
  Radiation Physics and Chemistry, 78 (2009) S86 (link).
• M. Krupiński, M. Kąc, A. Polit, Y. Zabila, D.A. Zając, M. Marszałek, Cz. Kapusta, A. Dobrowolska
  XAFS Studies of the Behaviour of Bi in Co/Cu Multilayers
  Acta Phys. Polon A, 115 (2009) 565 (pdf).

International collaborations

• Department of Physics University of St. Andrews, Scotland, UK
• Institute of Materials Research, University of Zaragoza, Spain
• Max Planck Institute for Metal Physics, Stuttgart, Germany
• Department of Pure & Applied Physics, Trinity College, Dublin, Ireland
• School of Metallurgy & Materials, University of Birmingham, UK
• Van der Waals - Zeeman Institute, University of Amsterdam, Holland
• European Synchrotron Radiation Facility, Grenoble, France
• Hasylab/DESY, Hamburg, Germany