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Monolayer calibration of endofullerenes with x-ray absorption from implanted keV ion doses

Lee, Wei Chuang (author)
Univ Zurich, Phys Inst, CH-8057 Zurich, Switzerland.
Yu, Lebin (author)
Univ Zurich, Phys Inst, CH-8057 Zurich, Switzerland.
Oscarsson, Johan, 1984- (author)
Uppsala universitet,Institutionen för fysik och astronomi
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Ochapski, Michal W. (author)
Ist Italiano Tecnol, Graphene Labs, IT-16163 Genoa, Italy.
Sagehashi, Ryunosuke (author)
Univ Zurich, Phys Inst, CH-8057 Zurich, Switzerland.
Zhang, Yang (author)
Leibniz Inst Solid State & Mat Res IFW, D-01069 Dresden, Germany.
Popov, Alexey A. (author)
Leibniz Inst Solid State & Mat Res IFW, D-01069 Dresden, Germany.
Gebeyehu, Zewdu M. (author)
Ist Italiano Tecnol, Graphene Labs, IT-16163 Genoa, Italy.
Martini, Leonardo (author)
Ist Italiano Tecnol, Graphene Labs, IT-16163 Genoa, Italy.
Forti, Stiven (author)
Ist Italiano Tecnol, Graphene Labs, IT-16163 Genoa, Italy.
Coletti, Camilla (author)
Ist Italiano Tecnol, Graphene Labs, IT-16163 Genoa, Italy.
Delley, Bernard (author)
Paul Scherrer Inst PSI, Swiss Light Source, CH-5232 Villigen, Switzerland.
Muntwiler, Matthias (author)
Paul Scherrer Inst PSI, Swiss Light Source, CH-5232 Villigen, Switzerland.
Primetzhofer, Daniel (author)
Uppsala universitet,Institutionen för fysik och astronomi
Greber, Thomas (author)
Univ Zurich, Phys Inst, CH-8057 Zurich, Switzerland.
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Univ Zurich, Phys Inst, CH-8057 Zurich, Switzerland Institutionen för fysik och astronomi (creator_code:org_t)
American Institute of Physics (AIP), 2024
2024
English.
In: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films. - : American Institute of Physics (AIP). - 0734-2101 .- 1520-8559. ; 42:2
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • X-ray absorption spectroscopy (XAS) has the highest sensitivity for chemical element detection on surfaces. With this approach, small amounts of lanthanide-containing endofullerene molecules (Ho3N@C80) have been measured by total electron yield at a low flux bending magnet beamline. The monolayer coverage is calibrated by extrapolating the signals of constant doses (3 x 1014 cm-2) of Ho ions implanted into SiO2 with energies between 2 and 115 keV. At room temperature, the Ho XAS spectra of the molecules and implanted ions indicate trivalent but not identical Ho ground states. Still, this approach demonstrates a way for calibration of small coverages of molecules containing open core-shell elements.

Subject headings

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

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art (subject category)

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