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Title: Chemical mixing at “Al on Fe” and “Fe on Al” interfaces

The chemical mixing at the “Al on Fe” and “Fe on Al” interfaces was studied by molecular dynamics simulations of the layer growth and by {sup 57}Fe Mössbauer spectroscopy. The concentration distribution along the layer growth direction was calculated for different crystallographic orientations, and atomically sharp “Al on Fe” interfaces were found when Al grows over (001) and (110) oriented Fe layers. The Al/Fe(111) interface is also narrow as compared to the intermixing found at the “Fe on Al” interfaces for any orientation. Conversion electron Mössbauer measurements of trilayers—Al/{sup 57}Fe/Al and Al/{sup 57}Fe/Ag grown simultaneously over Si(111) substrate by vacuum evaporation—support the results of the molecular dynamics calculations.
Authors:
;  [1] ; ; ;  [2] ;  [3]
  1. Institute of Technical Physics and Materials Science, Centre for Energy Research, Hungarian Academy of Sciences, H-1525 Budapest, P.O. Box 49 (Hungary)
  2. Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, H-1525 Budapest, P.O. Box 49 (Hungary)
  3. Department of Physics, Shiga University of Medical Science, Shiga 520-2192 (Japan)
Publication Date:
OSTI Identifier:
22492788
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRYSTALLOGRAPHY; DISTRIBUTION; INTERFACES; IRON 57; MIXING; MOLECULAR DYNAMICS METHOD; SIMULATION; SPECTROSCOPY; SUBSTRATES; VACUUM EVAPORATION