Phase Diagram of Magnetic Structures in Fe/Cr/Fe Films with Nanoscale Geometric Inhomogeneities of Interfaces / Gudin S. A.,Gapontsev A. V.,Bakulina N. B.,Kurkin M. I.,Ustinov V. V. // PHYSICS OF METALS AND METALLOGRAPHY. - 2009. - V. 107, l. 3. - P. 216-228.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

Results of an analysis of magnetic structures (mutual orientations of the iron-layer magnetizations) in three-layered Fe/Cr/Fe films formed due to the exchange interactions inside the layers of iron and chromium and on the Fe/Cr interfaces are given. The analysis was performed under the following assumptions: (1) the iron layers are ferromagnetic, and the magnetic structure of chromium layers has the form of transverse linearly polarized spin-density waves; (2) the iron-chromium exchange interaction is considered as a weak disturbance as compared to the exchange interactions inside the iron and chromium layers; therefore, they were considered as first-order and second- order perturbation-theory corrections; (3) the relative value of these corrections depends on the degree of roughness of the Fe/Cr interfaces; it was assumed that the roughness has a nanometer scale. With such approximations, the mutual orientation of the magnetizations of iron layers can be parallel, antiparallel, or noncollinear. The limits of stability of these structures depending on the thickness of the chromium interlayer and on the ratio of the first-to-second-order corrections have been determined. The main attention was paid to the conditions of the loss of stability with respect to changes in the phase of the spin-density wave, which can result in jumps in the curves of magnetization and magnetization reversal of the Fe/Cr films.

Author keywords:

SPIN-DENSITY WAVES; FE/CR(001) SUPERLATTICES; GIANT MAGNETORESISTANCE; MULTILAYERED STRUCTURES; INTERLAYER EXCHANGE; CONDUCTIVITY; CHROMIUM

DOI:

10.1134/S0031918X09030028

Web of Science ID:

ISI:000265735000002

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	SPIN-DENSITY WAVES; FE/CR(001) SUPERLATTICES; GIANT MAGNETORESISTANCE; MULTILAYERED STRUCTURES; INTERLAYER EXCHANGE; CONDUCTIVITY; CHROMIUM
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Kurkin, Mihail/K-7854-2013 Gudin, Sergey/I-7495-2013 Ustinov, Vladimir/G-7501-2011
ORCID-Numbers	Kurkin, Mihail/0000-0003-2669-6678 Gudin, Sergey/0000-0002-8241-5941 Ustinov, Vladimir/0000-0002-5155-7947
Funding-Acknowledgement	Russian Foundation for Basic Research {[}08-02-00904]; Presidium of the Russian Academy of Sciences; Foundation for Noncommercial Programs ``Dinastiya.{''}
Funding-Text	This work was supported in part by the Russian Foundation for Basic Research, project no. 08-02-00904, and by the Presidium of the Russian Academy of Sciences, the Foundation for Noncommercial Programs ``Dinastiya.{''}
Number-of-Cited-References	30
Usage-Count-Since-2013	6
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	440YG