About the method

Mössbauer spectroscopy of 57Fe and 119Sn isotopes allows for characterization of the nuclear state and the effect of the surrounding environment via hyperfine interactions. In addition to Mössbauer spectroscopy (in transmission mode, conversion electron and conversion X-ray MS), we combine techniques of structure analysis (X-ray fluorescence, X-ray diffraction, electron microscopy) with studies of magnetic properties (SQUID), distribution of hyperfine fields from nuclear magnetic resonance and, where feasible, also with DFT calculations to provide information on relevant physical and chemical properties of the studied material. Fields of mineralogy, geology, metallurgy, engineering, chemistry

A typical application of Mössbauer spectroscopy is to:

  • determine phase composition of samples containing various compounds of iron/tin or iron/tin-based alloys
  • determine the oxidation state of iron/tin
  • determine the magnetic state and ordering, structural and magnetic transitions
  • identify corrosion or catalysis products
  • study structural and magnetic defects induced by increased temperature (e.g. annealing), pressure, processing, radiation or biogenic damage
  • characterize surface layer in comparison to bulk
  • and many others

Samples:

  • powders (minimum weight ~10 mg)
  • foils (width 1-100 μm, area of few square mms)
  • ingots
  • supported layers
  • suspensions