Book ChapterDOI
X-Ray Standing Wave Studies of the Liquid/Solid Interface and Ultrathin Organic Films
Michael J. Bedzyk
- pp 113-117
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TLDR
In this paper, standing waves generated above a mirror surface during total external reflection have been used to locate a heavy atom layer which was embedded hundreds of angstroms above the mirror surface in a Langmuir-Blodgett multilayer.Abstract:
X-ray standing waves generated above a mirror surface during total external reflection have been used to locate a heavy atom layer which was embedded hundreds of angstroms above the mirror surface in a Langmuir-Blodgett multilayer. This same method has also been used to map out the ion distribution in the diffuse double layer that forms at the electrolyte / charged surface interface.read more
Citations
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Journal ArticleDOI
Concentration and chemical-state profiles at heterogeneous interfaces with sub-nm accuracy from standing-wave ambient-pressure photoemission
Slavomír Nemšák,Slavomír Nemšák,Slavomír Nemšák,Andrey Shavorskiy,Osman Karslıoğlu,Ioannis Zegkinoglou,A. Rattanachata,A. Rattanachata,C. Conlon,C. Conlon,A. Keqi,A. Keqi,Peter K. Greene,Edward C. Burks,Farhad Salmassi,Eric M. Gullikson,See-Hun Yang,Kai Liu,Hendrik Bluhm,Charles S. Fadley,Charles S. Fadley +20 more
TL;DR: It is shown for a model system of NaOH and CsOH in an ~1-nm thick hydrated layer on α-Fe2O3 (haematite) that combining ambient-pressure X-ray photoelectron spectroscopy and standing-wave photoemission spectroscopic provides the spatial arrangement of the bulk and interface chemical species, as well as local potential energy variations, along the direction perpendicular to the interface with sub-nm accuracy.
Journal ArticleDOI
X-ray Standing Wave Studies of Minerals and Mineral Surfaces: Principles and Applications
Michael J. Bedzyk,L. Cheng +1 more
TL;DR: In this article, a standing wave is defined by standing-wave vector Q defined in Equation (2), which is in the direction perpendicular to the equal intensity planes of the XSW and has a magnitude that is the reciprocal of D.
Journal ArticleDOI
Pb, Cu, and Zn distributions at humic acid-coated metal-oxide surfaces
Yingge Wang,F. Marc Michel,F. Marc Michel,Yongseong Choi,Peter J. Eng,Clément Levard,Hagar Siebner,Baohua Gu,John R. Bargar,Gordon E. Brown,Gordon E. Brown +10 more
TL;DR: In this article, a long-period X-ray standing wave-fluorescence yield (LP-XSW-FY) spectroscopy was applied to measure the partitioning of naturally present Cu(II) (0.0226%), Zn(II), and Pb(II)-II (∼ 0.0004%) between ESHA coatings and three model single-crystal metal-oxide substrates: α-Al2O3 (0, 0, 0, 0, 1), α-Fe2O 3 (0, 0, 1
Book ChapterDOI
Standing-Wave and Resonant Soft- and Hard-X-ray Photoelectron Spectroscopy of Oxide Interfaces
TL;DR: In this article, the authors discuss several new directions in photoemission that permit more quantitatively studying buried interfaces: going to higher energies in the multi-keV regime; using standing-wave excitation, created by reflection from either a multilayer heterostructure or atomic planes; tuning the photon energy to specific points near absorption resonances; and making use of near-total-reflection geometries.
Journal Article
Section 7. The Nature of Solid-Water Interfaces
TL;DR: In the past 40 years, surface science studies have revealed a great deal about clean surfaces of solids under controlled conditions ([Henrich and Cox, 1994] and as discussed by the authors, 1998].
References
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Journal ArticleDOI
X-ray standing waves at a reflecting mirror surface.
Michael J. Bedzyk,Michael J. Bedzyk,G. M. Bommarito,G. M. Bommarito,J. S. Schildkraut,J. S. Schildkraut +5 more
TL;DR: Generation d'ondes RX stationnaires au-dessus d'une surface de miroir d'or durant the reflexion externe totale durant la reflexion formerement totale.
Journal ArticleDOI
Effect of Dynamical Diffraction in X-Ray Fluorescence Scattering
TL;DR: In this article, a double-crystal spectrometer was used to measure the electric-field intensity at the atomic electrons, and it was shown that there is less x-ray intensity in the diffracting planes of atoms at low glancing angles than there is at high angles.
Journal ArticleDOI
Diffuse-double layer at a membrane-aqueous interface measured with x-ray standing waves.
TL;DR: The ion distribution in an electrolyte solution in contact with a charged polymerized phospholipid membrane was directly measured with long-period x-ray standing waves and qualitatively agree with the Gouy-Chapman-Stern model.
Journal ArticleDOI
X-Ray Standing Waves at Crystal Surfaces
TL;DR: With use of bromine atoms, deposited on the surface of a silicon single crystal, the presence of x-ray standing waves above the crystal surface has been detected under conditions of strong Bragg diffraction.
Journal ArticleDOI
Detection of Foreign Atom Sites by Their X-Ray Fluorescence Scattering
TL;DR: The position of a solute atom in a lattice can be detected by the nature of its x-ray fluorescence excitation during a diffraction process as mentioned in this paper, which can be used to identify the position of the solute in the lattice.