Diagnostics of the atomic structure of multilayer metallic nanoheterostructures from reflectometry data: A new approach to low-contrast systems / Babanov Yu. A.,Salamatov Yu. A.,Ustinov V. V.,Mukhamedzhanov E. Kh // PHYSICS OF THE SOLID STATE. - 2014. - V. 56, l. 9. - P. 1904-1915.

ISSN/EISSN:

1063-7834 / 1090-6460

Type:

Article

Abstract:

A new method for determining the concentration profiles of chemical elements in multilayer metallic nanoheterostructures from X-ray reflectometry data has been developed as applied to low-contrast systems. The method is based on the solution of the Fredholm integral equation of the first kind, which relates the reflection coefficient and the concentration profile of the chemical elements involved in the composition of the sample. The ill-posed inverse problem of the determination of the concentration profile is solved by the regularization method. The efficiency of the proposed method is confirmed by model calculations performed for a four-layer Cr/Gd/Fe/Cr//Si structure with high-contrast Cr/Gd pairs and low-contrast Fe/Cr pairs. The experimental results on the determination of the concentration profile of the surface layer of the epitaxial thin Cr films and three-layer Cr/Fe/Cr structure deposited on the Al2O3 substrate are presented.

Author keywords:

PHASELESS INVERSE SCATTERING; X-RAY; REFLECTIVITY

DOI:

10.1134/S1063783414090042

Web of Science ID:

ISI:000341630200028

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6460
Keywords-Plus	PHASELESS INVERSE SCATTERING; X-RAY; REFLECTIVITY
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	babanov@imp.uran.ru
ResearcherID-Numbers	Ustinov, Vladimir/G-7501-2011 Salamatov, Yuri/J-3527-2013 Babanov, Yuri/J-5549-2013
ORCID-Numbers	Ustinov, Vladimir/0000-0002-5155-7947 Salamatov, Yuri/0000-0002-3857-2392
Funding-Acknowledgement	Presidium of the Russian Academy of Sciences {[}12-P-2-1032]; Russian Foundation for Basic Research {[}12-02-31563-mol\_a]; Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools {[}NSh-6172.2012.2]
Funding-Text	This study was supported by the Presidium of the Russian Academy of Sciences within the framework of the program ``Fundamentals of Basic Research in Nanotechnologies and Nanomaterials{''} (project no. 12-P-2-1032), the Russian Foundation for Basic Research (project no. 12-02-31563-mol\_a), and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools (grant no. NSh-6172.2012.2).
Number-of-Cited-References	28
Usage-Count-Since-2013	4
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	AO8UJ