ArticleJournal of synchrotron radiation2022
X-ray reflectivity from curved surfaces as illustrated by a graphene layer on molten copper.
Article in Journal of synchrotron radiation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Impact of substrate curvature on grazing-incidence small-angle X-ray scattering signal: theory and example of Ag thin-film growth.Journal of applied crystallography · 2026Article
- Capillary Wave Driven Dynamics of Graphene Domains during Growth on Molten Metals.The journal of physical chemistry letters · 2025Article
- Versatile X-ray reflector extension setup for grazing-incidence experiments at SAXS facilities for liquid surface study.Journal of synchrotron radiation · 2025Article
- The laser pump X-ray probe system at LISA P08 PETRA III.Journal of synchrotron radiation · 2024Article
- Tripling of the scattering vector range of X-ray reflectivity on liquid surfaces using a double-crystal deflector.Journal of applied crystallography · 2024Article
- Graphene at Liquid Copper Catalysts: Atomic-Scale Agreement of Experimental and First-Principles Adsorption Height.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The X-ray reflectivity technique can provide out-of-plane electron-density profiles of surfaces, interfaces, and thin films, with atomic resolution accuracy. While current methodologies require high surface flatness, this becomes challenging for naturally curved surfaces, particularly for liquid metals, due to the very high surface tension. Here, the development of X-ray reflectivity measurements with beam sizes of a few tens of micrometres on highly curved liquid surfaces using a synchrotron diffractometer equipped with a double crystal beam deflector is presented. The proposed and developed method, which uses a standard reflectivity θ-2θ scan, is successfully applied to study in situ the bare surface of molten copper and molten copper covered by a graphene layer grown in situ by chemical vapor deposition. It was found that the roughness of the bare liquid surface of copper at 1400 K is 1.25 ± 0.10 Å, while the graphene layer is separated from the liquid surface by a distance of 1.55 ± 0.08 Å and has a roughness of 1.26 ± 0.09 Å.
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