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A CEMS search for precipitate formation in 57Fe implanted ZnO

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Abstract

Conversion electron Mössbauer Spectroscopy measurements have been made on ZnO single crystals implanted with 60 keV 57Fe to 4 and 8 at.% peak concentrations, and annealed up to 800°C. The spectra show quite strong changes with annealing, but no evidence of magnetic components, thus precluding the formation of large sized precipitates or secondary phases. Above an annealing temperature of 650°C, the dominant spectral component is a doublet with hyperfine parameters typical of Fe3 + , which is attributed to Fe3 +  ions in nano-precipitates ∼5 nm in size.

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Authors and Affiliations

  1. School of Physics, University of KwaZulu-Natal, Durban, 4041, South Africa

    Krishanlal Bharuth-Ram & Terence B. Doyle

  2. School of Physics, University of the Witwatersrand, WITS, Johannesburg, 2050, South Africa

    Hilary Masenda

  3. iThemba LABS, Somerset West, 7129, Western Cape, South Africa

    Terence B. Doyle

  4. Institue of Solid State Physics, University of Jena, 07743, Jena, Germany

    Sebastian Geburt & Carsten Ronning

  5. Department of Physics and Astronomy, Aarhus University, 8000, Aarhus, Denmark

    Harald Palle Gunnlaugsson

Authors
  1. Krishanlal Bharuth-Ram
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  2. Hilary Masenda
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  3. Terence B. Doyle
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  4. Sebastian Geburt
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  5. Carsten Ronning
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  6. Harald Palle Gunnlaugsson
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Correspondence to Krishanlal Bharuth-Ram.

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Bharuth-Ram, K., Masenda, H., Doyle, T.B. et al. A CEMS search for precipitate formation in 57Fe implanted ZnO. Hyperfine Interact 207, 49–52 (2012). https://doi.org/10.1007/s10751-011-0403-8

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  • DOI: https://doi.org/10.1007/s10751-011-0403-8

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