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Hyperfine Interactions

, Volume 158, Issue 1–4, pp 417–421 | Cite as

Acceleration of Diffusional Jumps of Interstitial Fe with Increasing Ge Concentration in Si1 − x Ge x Alloys Observed by Mössbauer Spectroscopy

  • G. Weyer
  • H. P. Gunnlaugsson
  • K. Bharuth-Ram
  • M. Dietrich
  • R. Mantovan
  • V. Naicker
  • D. Naidoo
  • R. Sielemann
Article

Abstract

Radioactive 57Mn isotopes have been implanted into Si1 − x Ge x crystals (x ≤ 0.1) at elevated temperatures for Mössbauer studies of the diffusion of interstitial 57Fe daughter atoms. The atomic jump frequency is found to increase upon Ge alloying. This is attributed to a lowering of the activation energy, i.e. the saddle point energy at hexagonal interstitial sites with Ge neighbour atoms.

Key Words

diffusion Fe impurities Mössbauer spectroscopy SiGe 

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References

  1. 1.
    Heiser T. and Mesli A., Phys. Rev. Lett. 68 (1992), 978.CrossRefADSGoogle Scholar
  2. 2.
    Gunnlaugsson H. P, Weyer G., Dietrich M., Fanciulli M., Bharuth-Ram K. and Sielemann R., Appl. Phys. Lett. 80 (2002), 2657.CrossRefGoogle Scholar
  3. 3.
    Kamon Y., Harima H., Yanase A. and Katayama-Yoshida H., Physica, B 308–310 (2001), 391.CrossRefGoogle Scholar
  4. 4.
    Mesli A., Vileno B., Eckert C., Slaoui A., Pedersen C., Nylandsted Larsen A. and Abrosimov N. V., Phys. Rev., B 66 (2002), 045206.CrossRefADSGoogle Scholar
  5. 5.
    Weyer G., Gunnlaugsson H. P., Dietrich M., Fanciulli M., Bharuth-Ram K. and Sielemann R., Nucl. Instrum. Methods B 206 (2003), 90.CrossRefADSGoogle Scholar
  6. 6.
    Singwi K. S. and Sjölander A., Phys. Rev. 120 (1960), 1093.CrossRefADSGoogle Scholar
  7. 7.
    Gunnlaugsson H. P., Weyer G., Christensen N. E., Dietrich M., Fanciulli M., Bharuth-Ram K., Sielemann R. and Svane A., Physica B 340–342 (2003), 532.CrossRefGoogle Scholar
  8. 8.
    Gunnlaugsson H. P., Weyer G., Dietrich M., Fanciulli M., Bharuth-Ram K. and Sielemann R., Physica, B 340–342 (2003), 537.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • G. Weyer
    • 1
    • 2
  • H. P. Gunnlaugsson
    • 2
  • K. Bharuth-Ram
    • 3
  • M. Dietrich
    • 1
  • R. Mantovan
    • 4
  • V. Naicker
    • 3
  • D. Naidoo
    • 3
  • R. Sielemann
    • 5
  1. 1.ISOLDE Collaboration, EP DivisionCERNGeneva 23Switzerland
  2. 2.Institute of Physics and AstronomyAarhus UniversityAarhusDenmark
  3. 3.School of Pure and Applied PhysicsUniversity of NatalDurbanSouth Africa
  4. 4.Laboratorio MDM-INFMAgrate BrianzaItaly
  5. 5.Hahn-Meitner InstituteBerlinGermany

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