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This article is cited in 5 scientific papers (total in 5 papers)
CONDENSED MATTER
Model-independent X-ray scattering study of a silica sol surface
A. M. Tikhonova, V. E. Asadchikovb, Yu. O. Volkovb, B. S. Roshchinb, V. Honkimäkic, M. V. Blancoc a Kapitza Institute for Physical Problems, Russian Academy of Sciences, Moscow, Russia
b Shubnikov Institute of Crystallography, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences, Moscow, Russia
c European Synchrotron Radiation Facility, Grenoble, France
Abstract:
The structure of the adsorbed layer of alkali ions on the surface of colloidal silica solutions with a particle size of $27$ nm has been studied by reflectometry and diffuse scattering of synchrotron radiation with a photon energy of about $71$ keV. Electron density profiles in the direction perpendicular to the surface have been reconstructed from experimental data and spectra of the correlation function of heights in the surface plane have been obtained. The revealed deviation of the integral and frequency characteristics of the roughness spectra of the silica sol surface from predictions of the capillary-wave theory is of a fundamental character. This deviation is due to the contribution from roughnesses with low spatial frequencies $\nu < 10^{-4}$ nm$^{-1}$ and to the interference of diffuse scattering from different layer interfaces of the surface structure.
Received: 13.02.2018
Citation:
A. M. Tikhonov, V. E. Asadchikov, Yu. O. Volkov, B. S. Roshchin, V. Honkimäki, M. V. Blanco, “Model-independent X-ray scattering study of a silica sol surface”, Pis'ma v Zh. Èksper. Teoret. Fiz., 107:6 (2018), 394–399; JETP Letters, 107:6 (2018), 384–389
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https://www.mathnet.ru/eng/jetpl5532 https://www.mathnet.ru/eng/jetpl/v107/i6/p394
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Abstract page: | 173 | Full-text PDF : | 13 | References: | 32 | First page: | 9 |
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