Abstract:
We have succeeded in obtaining well-resolved Mössbauer spectra of 57Fe arising from short-lived 57Mn ( T 1/2 = 1.45 min) in Si and KMnO4. The Mössbauer spectra of 57Fe in Si are well fitted with a curve consisting of two singlet lines, one being assigned as the interstitial Fe atoms and the other as substitutional ones. The relative intensities of the two lines infer that 60% of 57Fe ( ←57Mn) atoms land at the interstitial sites and 40% at the substitutional sites at temperatures between 30 K and 296 K. The result for the KMnO4 sample suggests a presence of an exotic chemical species corresponding to a higher valence state than Fe6 +.
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Received: 1 May 2001 / Accepted: 4 December 2001
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Kobayashi, Y., Yoshida, Y., Kubo, M. et al. In-beam Mössbauer study of 57Fe using a secondary 57Mn beam and ion implantation. Eur Phys J A 13, 243–246 (2002). https://doi.org/10.1140/epja1339-41
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DOI: https://doi.org/10.1140/epja1339-41