Hyperfine Interactions

, Volume 221, Issue 1–3, pp 45–51

Stability of the Fe3 +  state in ZnO

  • D. Naidoo
  • H. P. Gunnlaugsson
  • T. E. Mølholt
  • R. Mantovan
  • H. Masenda
  • K. Bharuth-Ram
  • K. Johnston
  • H. P. Gislason
  • G. Langouche
  • S. Ólafsson
  • G. Weyer
  • R. Sielemann
  • the ISOLDE Collaboration
Article

Abstract

We have applied implantation of radioactive 57Mn +  (T1/2 = 1.5 min) at the ISOLDE facility at CERN with 50–60 keV energy to fluences <1012 /cm2 to study the emission Mössbauer spectra from the 14.4 keV transition of the 57Fe daughter atoms. For fluences ≥5 × 101157Mn/cm2, the spectra are dominated by the Fe3 +  state exhibiting a slow paramagnetic relaxation. We show that the Fe3 +  state in ZnO saturated by <101257Mn/cm2 implantations is unstable. The crystals can be reset by annealing at T > 760 K or storage at room temperature for 12 months, after which they show dominantly the Fe2 +  state for <2 × 101057Mn/cm2 implantations. These findings are discussed in terms of diffusion and/or annihilation of implantation-induced defects.

Keywords

Mössbauer Implantation-induced defects Annealing Diffusion 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Dietl, T., Ohno, H., Matsukura, F., Cibert, J., Ferrand, D.: Science 287, 1019 (2000)ADSCrossRefGoogle Scholar
  2. 2.
    Dietl, T.: Nat. Mater. 9, 965–974 (2010)ADSCrossRefGoogle Scholar
  3. 3.
    Mantovan, R., Gunnlaugsson, H.P., Naidoo, D., Masenda, H., Mølholt, T.E., Ólafsson, S., Johnston, K., Bharuth-Ram, K., Fanciulli, M., Gislason, H.P., Langouche, G., Sielemann, R., Weyer, G., the ISOLDE Collaboration: J. Phys.: Condens. Matter 24, 485801 (2012)CrossRefGoogle Scholar
  4. 4.
    Mølholt, T.E., Mantovan, R., Gunnlaugsson, H.P., Bharuth-Ram, K., Fanciulli, M., Gislason, H.P., Johnston, K., Kobayashi, Y., Langouche, G., Masenda, H., Naidoo, D., Ólafsson, S., Sielemann, R., Weyer, G.: Physica B 404, 4820–4822 (2009)ADSCrossRefGoogle Scholar
  5. 5.
    Gunnlaugsson, H.P., Mølholt, T.E., Mantovan, R., Masenda, H., Naidoo, D., Dlamini, W.B., Sielemann, R., Bharuth-Ram, K., Weyer, G., Johnston, K., Langouche, G., Ólafsson, S., Gislason, H.P., Kobayashi, Y., Yoshida, Y., Fanciulli, M., the ISOLDE Collaboration: Appl. Phys. Lett. 97, 142501 (2010)ADSCrossRefGoogle Scholar
  6. 6.
    Rita, E., Wahl, U., Correia, J.G., Alves, E., Soares, J.C., the ISOLDE Collaboration: Appl. Phys. Lett. 85, 4899 (2004)ADSCrossRefGoogle Scholar
  7. 7.
    Ziegler, J.F., Biersack, J.P., Ziegler, M.D.: SRIM—The Stopping and Range of Ions in Matter. Lulu Press Co., Morrisville (2008)Google Scholar
  8. 8.
    Coskun, C., Look, D.C., Farlow, G.C., Sizelove, J.R.: Radiation hardness of ZnO at low temperatures. Semicond. Sci. Technol. 19(6), 752–754 (2004)ADSCrossRefGoogle Scholar
  9. 9.
    Gunnlaugsson, H.P., Weyer, G., Mantovan, R., Naidoo, D., Sielemann, R., Bharuth-Ram, K., Fanciulli, M., Johnston, K., Ólafsson, S., Langouche, G.: Hyperfine Interact. 188, 85–89 (2009)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • D. Naidoo
    • 1
  • H. P. Gunnlaugsson
    • 2
  • T. E. Mølholt
    • 3
  • R. Mantovan
    • 4
  • H. Masenda
    • 1
  • K. Bharuth-Ram
    • 5
  • K. Johnston
    • 6
  • H. P. Gislason
    • 3
  • G. Langouche
    • 7
  • S. Ólafsson
    • 3
  • G. Weyer
    • 2
  • R. Sielemann
    • 8
  • the ISOLDE Collaboration
  1. 1.School of PhysicsUniversity of the WitwatersrandJohannesburgSouth Africa
  2. 2.Department of Physics and AstronomyAarhus UniversityAarhus CDenmark
  3. 3.Science InstituteUniversity of IcelandReykjavikIceland
  4. 4.Laboratorio MDM IMM-CNRAgrate BrianzaItaly
  5. 5.School of PhysicsUniversity of KwaZulu-NatalDurbanSouth Africa
  6. 6.EP DivisionCERNGeneva 23Switzerland
  7. 7.Instituut voor Kern-en StralingsfysikaUniversity of LeuvenLeuvenBelgium
  8. 8.Helmholtz ForschungszentrumBerlinGermany

Personalised recommendations