Abstract
We have conducted conversion electron Mössbauer spectroscopy (CEMS) studies of Fe-carbides produced in Fe implanted highly oriented pyrolytic graphite (HOPG) and CVD diamond substrates. The samples were implanted at room temperature with 57Fe ions with 40 keV and 60 keV, respectively, and corresponding fluences of 1.0·1016/cm2 and 5·1015/cm2. The formation of magnetic structures in the spectra was monitored with CEMS measurement after annealing the samples at temperatures up to 700 °C. After the high temperature annealing, the main components in the spectra were sextets whose line shapes displayed strong, asymmetric distortions, consistent with those due the formation of nanoclusters. The hyperfine magnetic fields Bhf = 21.6 T, 20.0 T and 18 (1) T were in good agreement with those observed previously for Fe3C nanoclusters 10–20 nm in size.
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05 September 2019
Due to technical constraints this article was published in volume 240:1 with erroneous article citation ID number 6 whereas this should have been 76 which is corrected as such. Springer Nature sincerely apologizes towards the author(s) for the inconvenience caused.
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The authors acknowledge the support of the National Research Foundation (South Africa) and of the Alexander von Humboldt (AvH) Foundation within the framework its of “Institutspartnerschaft”.
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This article is part of the Topical Collection on Proceedings of the International Conference on Hyperfine Interactions and their Applications (HYPERFINE 2019), Goa, India, 10-15 February 2019
Edited by S. N. Mishra, P. L. Paulose and R. Palit
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Bharuth-Ram, K., Masenda, H., Ronning, C. et al. Fe3C nanoparticle formation in Fe implanted HOPG and CVD diamond. Hyperfine Interact 240, 76 (2019). https://doi.org/10.1007/s10751-019-1615-6
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DOI: https://doi.org/10.1007/s10751-019-1615-6