Atomic Scale Modelling of Nanocrystalline alloys
          Nanocrystalline alloys which are produced by subsequent annealing from the amorphous precursor state, consist of nanocrystalline embedded in an amorphous remainder matrix. From Mössbauer experiments recorded at different temperatures on nanocrystalline alloys with different crystalline fraction, the atomic structure was modelled using the concept of an interfacial zone resulting from the symmetry restriction at the periphery of crystalline grains in the nanocrystalline alloys. The results are also related to the atom probe field ion microscopy, EXAFS, and FMR analysis. The experiments evidence for the existence of the interfacial zone (with a thickness of about 2-3atomic layers) while its presence is justified by the structural, chemical and magnetic properties.