Abstract
During 350 keV Ar+ irradiation at 77K, laser-deposited Fe−Ag multilayers first show stress relaxation and demixing processes at the interfaces followed by grain coarsening and a supersaturation of the bcc α-Fe phase with Ag due to ballistic mixing. At high fluence, the fcc γ-Fe(Ag) phase (a=3.65 Å) is formed, which can be explained by either chemically guided ballistic short-range relocations or by the occurrence of thermal spikes, where all atoms possess sufficient energy to allow collective structural rearrangements, but only during such a short time that a decomposition due to long-range diffusion is suppressed.
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Krebs, H.U., Luo, Y., Störmer, M. et al. Structural changes during Ar-ion irradiation of laser-deposited Fe/Ag multilayers. Appl. Phys. A 61, 591–594 (1995). https://doi.org/10.1007/BF01542869
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DOI: https://doi.org/10.1007/BF01542869