Local atomic structure of Fe/Cr multilayers: Depth-resolved method / Babanov Yu. A.,Ponomarev D. A.,Devyaterikov D. I.,Salamatov Yu. A.,Romashev L. N.,Ustinov V. V.,Vasin V. V.,Ageev A. L. // JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - 2017. - V. 440, l. . - P. 203-206.

ISSN/EISSN:

0304-8853 / 1873-4766

Type:

Article; Proceedings Paper

Abstract:

A depth-resolved method for the investigation of the local atomic structure by combining data of X-ray reflectivity and angle-resolved EXAFS is proposed. The solution of the problem can be divided into three stages: 1) determination of the element concentration profile with the depth z from X-ray reflectivity data, 2) determination of the X-ray fluorescence emission spectrum of the element i absorption coefficient mu(alpha)(i)(z, E) as a function of depth and photon energy E using the angle-resolved EXAFS data I-i(f)(E,theta(l)), 3) determination of partial correlation functions g(ij)(z, r) as a function of depth from mu(i)(z, E). All stages of the proposed method are demonstrated on a model example of a multilayer nanoheterostructure Cr/Fe/Cr/Al2O3. Three partial pair correlation functions are obtained. A modified Levenberg-Marquardt algorithm and a regularization method are applied.

Author keywords:

EXAFS; Reflectivity; Kondo-like behavior; Multilayers; Inverse problems RAY-ABSORPTION SPECTROSCOPY; REAL-SPACE; REFLECTIVITY; SPECTRA

DOI:

10.1016/j.jmmm.2016.12.043

Web of Science ID:

ISI:000406865200056

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT 15
Note	EURO-Asian Symposium on Trends in Magnetism (EASTMAG), Siberian Fed Univ, Krasnoyarsk, RUSSIA, AUG 15-19, 2016
Organization	Kirensky Inst Phys; Fed Res Ctr; Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr; Russian Fdn Basic Res; NPP Radiosviaz Krasnoyarsk; Ctr NAUKA Moscow; Cryotrade Engn Co Moscow
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-4766
Keywords-Plus	RAY-ABSORPTION SPECTROSCOPY; REAL-SPACE; REFLECTIVITY; SPECTRA
Research-Areas	Materials Science; Physics
Web-of-Science-Categories	Materials Science, Multidisciplinary; Physics, Condensed Matter
Author-Email	babanov@imp.uran.ru
ResearcherID-Numbers	Ustinov, Vladimir/G-7501-2011
ORCID-Numbers	Ustinov, Vladimir/0000-0002-5155-7947
Funding-Acknowledgement	Russian Foundation for Basic Research {[}14-22-01063-ofi m, 15-02-01674-a, 16-32-00676-mol a, 15-01-00629]; Ural Branch of Russian Academy of Sciences {[}15-9-2-22]; RF President Program of Support for Scholar Schools {[}SS-1540.2014.2]
Funding-Text	This work was supported in part by Russian Foundation for Basic Research (Grant no. 14-22-01063-ofi m, grant no. 15-02-01674-a, grant no. 16-32-00676-mol a, grant no. 15-01-00629), by Program of Ural Branch of Russian Academy of Sciences (Grants no. 15-9-2-22), and by the RF President Program of Support for Scholar Schools (Grant no. SS-1540.2014.2).
Number-of-Cited-References	13
Usage-Count-Last-180-days	6
Usage-Count-Since-2013	6
Journal-ISO	J. Magn. Magn. Mater.
Doc-Delivery-Number	FC5ER