Simulation of Neutron Reflection from the Surface of a Nanostructured Object in the Modified Kinematic Approximation
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The applicability of the modified kinematic approximation for simulation of the specular reflection and the diffraction of a neutron beam from regularly ordered nanostructured objects on the surface and in the surface material layer is analyzed. The obtained results are compared with those of the real experiment and simulation of the distorted-wave Born approximation (DWBA). The influence of various factors on the obtained results is analyzed. These factors include the effect of neutron-wave refraction at the interfaces between media, the spectrometer-resolution function, and renormalization of the results for a nonspecular scattering signal based on data obtained for a specular channel. It is shown that, in many cases, it is possible to obtain rather good agreement with the experimental data and with the results of calculations using DWBA methods and of calculations using the Parratt algorithm.
Keywordskinematic approximation nanostructures diffraction simulation
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- 4.P. Croce, L. Nevot, and B. Pardo, C. R. Acad. Sci. Paris 274 (803), 136 (1972).Google Scholar
- 6.H. Zabel, K. Theis Bröhl, and B. P. Toperverg, Polarized Neutron Reflectivity and Scattering from Magnetic Nanostructures and Spintronic Materials. Handbook of Magnetism and Advanced Magnetic Materials (John Wiley and Sons, 2007).Google Scholar
- 8.C. J. Metting, Dissertation Submitted to the Faculty of the Graduate School of the University of Maryland (College Park, 2011). http://drum.lib.umd.edu/bitstream/1903/12439/1/Metting_umd_ 0117E_12778.pdf.Google Scholar
- 11.http://www.bornagainproject.org.Google Scholar
- 12.A. Gibaud and G. Vignaud, Specular Reflectivity from Smooth and Rough Surfaces in X-Ray and Neutron Reflectivity. Principles and Applications, Ed. by J. Daillant and A. Gibaud (Springer, Berlin-Heidelberg, 2009).Google Scholar
- 18.E. L. Schwartz and C. K. Ober, Phase-Selective Chemistry in Block Copolymer Systems, in Advanced Nanomaterials, Ed. by K. E. Geckeler and H. Nishide (Wiley-VCH, Weinheim, 2009).Google Scholar