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  Dynamical Effects in Resonant X-Ray Diffraction

Macke, S., Hamann-Borrero, J. E., Green, R. J., Keimer, B., Sawatzky, G. A., & Haverkort, M. W. (2016). Dynamical Effects in Resonant X-Ray Diffraction. Physical Review Letters, 117(11): 115501, pp. 1-6. doi:10.1103/PhysRevLett.117.115501.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-9B50-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-D903-B
Genre: Journal Article

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 Creators:
Macke, S.1, Author
Hamann-Borrero, J. E.1, Author
Green, Robert J.2, Author              
Keimer, B.1, Author
Sawatzky, G. A.1, Author
Haverkort, M. W.3, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Maurits Haverkort, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863455              

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 Abstract: Using resonant magnetic diffraction at the Ni L-2,L-3 edge in a LaNiO3 superlattice, we show that dynamical effects beyond the standard kinematic approximation can drastically modify the resonant scattering cross section. In particular, the combination of extinction and refraction convert maxima to minima in the azimuthal-angle dependence of the diffracted intensity, which is commonly used to determine orbital and magnetic structures by resonant x-ray diffraction. We provide a comprehensive theoretical description of these effects by numerically solving Maxwell's equations in three dimensions. The understanding and description of dynamical diffraction enhances the capabilities of resonant x-ray scattering as a probe of electronic ordering phenomena in solids.

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Language(s): eng - English
 Dates: 2016-09-092016-09-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 117 (11) Sequence Number: 115501 Start / End Page: 1 - 6 Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1