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Phys. Rev. B 68, 224410 (2003) [14 pages]

X-ray resonant magnetic scattering from structurally and magnetically rough interfaces in multilayered systems. II. Diffuse scattering

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D. R. Lee*
Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA

S. K. Sinha
Department of Physics, University of California, San Diego, La Jolla, California 92093, USA
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

C. S. Nelson†, J. C. Lang, C. T. Venkataraman, and G. Srajer
Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA

R. M. Osgood, III
Lincoln Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Received 9 May 2003; published 10 December 2003

The theoretical formulation of x-ray resonant magnetic scattering from rough surfaces and interfaces is given for the diffuse (off-specular) scattering, and general expressions are derived in both the Born approximation (BA) and the distorted-wave Born approximation for both single and multiple interfaces. We also give in the BA the expression for off-specular magnetic scattering from magnetic domains. For this purpose, structural and magnetic interfaces are defined in terms of roughness parameters related to their height-height correlation functions and the correlations between them. The results are generalized to the case of multiple interfaces, as in the case of thin films or multilayers. Theoretical calculations for each of the cases are illustrated as numerical examples and compared with experimental data of magnetic diffuse scattering from a Gd/Fe multilayer.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.68.224410
DOI:
10.1103/PhysRevB.68.224410
PACS:
75.70.Cn, 61.10.-i

*Electronic address: drlee@aps.anl.gov

†Present address: NRL-SRC, National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY 11973.

 
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