Membrane Structure Characterization Using Variable-Period X-Ray Standing Waves
نویسندگان
چکیده
منابع مشابه
Surface Structure Determination with X-ray Standing Waves
Figure 1: A standing wave with the periodicity of the substrate lattice is generated by reflection from a single crystal. By scanning the photon energy of the incident wave through the Bragg condition the XSW field above the surface changes in a characteristic way. The emitted photoelectrons or Auger electrons that are generated by inelastic scattering processes can be used as element-specific ...
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The quantitative structure determination of adsorbed species on quasicrystal surfaces has so far appeared to present insurmountable problems. The normal incidence standing x-ray wave field technique offers a simple solution, without extensive data sets or large computations. Its application to quasicrystals raises several conceptual difficulties that are related to the phase problem in x-ray di...
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Vaibhav Kohli,1,2 Michael J. Bedzyk,1,3 and Paul Fenter2 1Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA 2Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 3Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA Received 14 October 2009; revised manuscript ...
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X-Ray standing wave (XSW) measurements were made of Rb and Sr adsorbed from aqueous solutions at the rutile (110)-water interface. These experiments were performed to address the extent to which direct measurements of electrical double-layer structure are possible. The experimental results show that the Bragg XSW technique, using small-period standing waves generated by Bragg diffraction from t...
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Variable period X-ray standing wave (XSW) measurements have been used previously to monitor and to interpret structure rearrangements undergone during a phase transition in a model membrane with angstrom resolution. In the present study, an extended length scale ranging from 40 up to ca. 1000 8, has been used without sacrificing resolution to address the question of whether the phase transition...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1998
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(98)77901-9