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  Surface and subsurface damage in 14 MeV Au ion-irradiated diamond

Bunk, K., Alencar, I., Morgenroth, W., Bertram, F., Schmidt, C., Zimmer, D., Gruszka, P., Hanefeld, M., Bayarjargal, L., Trautmann, C., Winkler, B. (2021): Surface and subsurface damage in 14 MeV Au ion-irradiated diamond. - Journal of Applied Physics, 130, 10, 105303.
https://doi.org/10.1063/5.0060445

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 Creators:
Bunk, K.1, Author
Alencar, I.1, Author
Morgenroth, W.1, Author
Bertram, F.1, Author
Schmidt, C.2, Author              
Zimmer, D.1, Author
Gruszka, P.1, Author
Hanefeld, M.1, Author
Bayarjargal, L.1, Author
Trautmann, C.1, Author
Winkler, B.1, Author
Affiliations:
1External Organizations, ou_persistent22              
23.6 Chemistry and Physics of Earth Materials, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146036              

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 Abstract: The effects of ion irradiation on the surface and the subsurface of synthetic diamonds were characterized by using optical microscopy, atomic force microscopy, Raman spectroscopy, x-ray reflectivity, electron backscatter diffraction, and resistivity measurements. Irradiation experiments with 14 MeV Au6+ ions with fluences up to 2,4 x 10 15 ions/cm2 were carried out on synthetic single crystal diamonds, grown either at high pressure or by chemical vapor deposition, and on polycrystalline samples with high boron concentrations. We show that the ion irradiation-induced changes to the surface and subsurface of diamonds are rather complex and, especially in the first few nanometers, more severe than generally considered. We establish a model describing the changes in density, defect concentration, topology, crystallinity, and bonding from the surface down to the first few micrometers of the irradiated diamond.

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Language(s): eng - English
 Dates: 20212021
 Publication Status: Finally published
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 Identifiers: DOI: 10.1063/5.0060445
GFZPOF: p4 T8 Georesources
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Title: Journal of Applied Physics
Source Genre: Journal, SCI, Scopus
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Pages: - Volume / Issue: 130 (10) Sequence Number: 105303 Start / End Page: - Identifier: CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals243
Publisher: American Institute of Physics (AIP)