Magnetic Bulk- and Nano-Materials

The Team works on synthesis and study of properties of magnetic-, superconducting-, and nano-materials as well as their systems, a.o.: - synthesis and study of magnetic nanoparticles with various coatings / functionalization and polymer nanocapsules in relation to their applied properties eg. for magnetically controlled nanoreactors, biomedicine - nanomedicine - theranostics (MRI, cancer therapy), - study of plasmonic nanoparticles and plasmonic heating effects for biomedical applications, - preparation and study of properties of hydrogels doped with magnetic nanoparticles for biomedical applications - tissue regeneration, - preparation and study of individual atomic site properties of novell high temperature superconductors (single crystals and powders) towards understanding of the mechanism of superconductivity and finding the way of increasing the transition temperature, - investigation of exchange bias effects in the Co/Pd antidot systems and spin dependent transport in the IrMn − Co/Pd multilayers.

Research Subjects

  • Investigation of dynamics of various magnetic nanoparticles and nanocapsules in relation to their applied properties for: magnetically navigated nanoreactors, biomedicine (MRI, magnetic hyperthermia) and environmental purposes (nanoparticle impregnated
    adsorbents of polluters).
  • Study of individual atomic site properties of novell high temperature superconductors towards understanding of the mechanism of superconductivity and the way of increasing the transition temperature.
  • Investigation of exchange bias effects in the Co/Pd antidot systems and spin dependent transport in the IrMn − Co/P d multilayers.
  • Preparation and characterization of shape memory NiT and alloy micro-foils obtained by pulsed-current sintering
    and bulk doped Ni-Mn-Sn system.
  • Study of focused electron beam-induced deposition process and post-growth purification of nanostructures
    – collaboration with EMPA, Thun.
  • Preparation and study of properties of hydrogels impregnated with magnetic nanoparticles - biomedical applications.

Equipment

  • Physical Property Measurement System (Quantum Design model, closed circle liquifier) equipped with 9 Tesla magnet, 2-400 K
    (VSM: 2-1100 K) temperature range, options: DC susceptibility, magnetisation, torque magnetometry, AC susceptibility, resistance/magnetoresistance, thermal expansion & magnetostriction, thermal transport & thermoelectric properties, specific heat.
  • NMR spectrometers for proton resonance (15 MHz, 17 MHz) and for magnetic materials, 5-1000 MHz.
  • Mössbauer spectrometers (4), transmission & CEMS, for 6 isotopes.
  • X-ray diffractometer, Siemens D-5000 for measurements in the temperature range 2–500 K.
  • Fritsch Pulverisette high-energy planetary mill suitable for milling in reactive/inert atmospheres or in suspensions.
  • Magnetron sputtering home made set-up, suitable for sputtering on flat surfaces and on powders or nanopowders.

International collaborations

  • Aragonian Institute of Nanoscience, University of Zaragoza, Zaragoza, Spain
  • EMPA Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland
  • Belarussian State University and Institute of High Energy Physics, Minsk, Belarus
  • University of Leipzig, Leipzig, Germany
  • Argonne National Laboratory, Argonne, USA

Head of the group:
prof. dr hab. Czesław Kapusta