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Title: Phase and Amplitude Recover and Diffraction Image Generation Method: Structure of Sb/Au(110)-3 x 3R54.7 degrees from Surface X-ray Diffraction

Abstract

The discovery that the phase problem of diffraction from non-periodic objects may be solved by oversampling the diffraction intensities in reciprocal space with respect to a Nyquist criterion has opened up new vistas for structure determination by diffraction methods. A similar principle may be applied to the problem of surface X-ray diffraction (SXRD), where, owing to the breaking of a crystal periodicity normal to its surface, diffraction data consist of a set of superstructure rods (SRs) due to scattering from the parts of the surface whose structure is different from that of the truncated bulk and of crystal truncation rods (CTRs), formed by interfering contributions from the surface and the bulk. A phase and amplitude recovery and diffraction image generation method (PARADIGM) is described that provides a prescription for finding the unmeasured amplitudes and phases of the surface contributions to the CTRs in addition to the phases of the SRs, directly from the diffraction data. The resulting 'diffraction image' is the basis of a determination of the previously unknown multidomain structure of Sb/Au(110)-{radical}3 x 3R54.7{sup o}.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930458
Report Number(s):
BNL-81210-2008-JA
Journal ID: ISSN 0108-7673; TRN: US200904%%729
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Acta Crystallographica Section A: Foundations of Crystallography; Journal Volume: 63
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMPLITUDES; CRYSTAL STRUCTURE; DIFFRACTION; DIFFRACTION METHODS; PERIODICITY; SCATTERING; X-RAY DIFFRACTION; national synchrotron light source

Citation Formats

Fung,R., Shneerson, V., Lyman, P., Parihar, S., Johnson-Steigelman, H., and Saldin, D.. Phase and Amplitude Recover and Diffraction Image Generation Method: Structure of Sb/Au(110)-3 x 3R54.7 degrees from Surface X-ray Diffraction. United States: N. p., 2007. Web. doi:10.1107/S0108767307002930.
Fung,R., Shneerson, V., Lyman, P., Parihar, S., Johnson-Steigelman, H., & Saldin, D.. Phase and Amplitude Recover and Diffraction Image Generation Method: Structure of Sb/Au(110)-3 x 3R54.7 degrees from Surface X-ray Diffraction. United States. doi:10.1107/S0108767307002930.
Fung,R., Shneerson, V., Lyman, P., Parihar, S., Johnson-Steigelman, H., and Saldin, D.. Mon . "Phase and Amplitude Recover and Diffraction Image Generation Method: Structure of Sb/Au(110)-3 x 3R54.7 degrees from Surface X-ray Diffraction". United States. doi:10.1107/S0108767307002930.
@article{osti_930458,
title = {Phase and Amplitude Recover and Diffraction Image Generation Method: Structure of Sb/Au(110)-3 x 3R54.7 degrees from Surface X-ray Diffraction},
author = {Fung,R. and Shneerson, V. and Lyman, P. and Parihar, S. and Johnson-Steigelman, H. and Saldin, D.},
abstractNote = {The discovery that the phase problem of diffraction from non-periodic objects may be solved by oversampling the diffraction intensities in reciprocal space with respect to a Nyquist criterion has opened up new vistas for structure determination by diffraction methods. A similar principle may be applied to the problem of surface X-ray diffraction (SXRD), where, owing to the breaking of a crystal periodicity normal to its surface, diffraction data consist of a set of superstructure rods (SRs) due to scattering from the parts of the surface whose structure is different from that of the truncated bulk and of crystal truncation rods (CTRs), formed by interfering contributions from the surface and the bulk. A phase and amplitude recovery and diffraction image generation method (PARADIGM) is described that provides a prescription for finding the unmeasured amplitudes and phases of the surface contributions to the CTRs in addition to the phases of the SRs, directly from the diffraction data. The resulting 'diffraction image' is the basis of a determination of the previously unknown multidomain structure of Sb/Au(110)-{radical}3 x 3R54.7{sup o}.},
doi = {10.1107/S0108767307002930},
journal = {Acta Crystallographica Section A: Foundations of Crystallography},
number = ,
volume = 63,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}