Fe3C nanoparticle formation in Fe implanted HOPG and CVD diamond

Bharuth-Ram K, Masenda H, Ronning C, Hofsaess H (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Hyperfine Interactions Springer Verlag (Germany)

Book Volume: 240

Article Number: 76

Journal Issue: 1

DOI: 10.1007/s10751-019-1615-6

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.

Involved external institutions

Georg-August-Universität Göttingen DE Germany (DE) University of KwaZulu-Natal (UKZN) ZA South Africa (ZA) University of the Witwatersrand (WITS) ZA South Africa (ZA) Durban University of Technology (DUT) ZA South Africa (ZA)

How to cite

APA:

Bharuth-Ram, K., Masenda, H., Ronning, C., & Hofsaess, H. (2019). Fe3C nanoparticle formation in Fe implanted HOPG and CVD diamond. Hyperfine Interactions, 240(1). https://dx.doi.org/10.1007/s10751-019-1615-6

MLA:

Bharuth-Ram, Krishanlal, et al. "Fe3C nanoparticle formation in Fe implanted HOPG and CVD diamond." Hyperfine Interactions 240.1 (2019).

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