Interlayer coupling in Fe/Cr/Gd multilayer structures / Drovosekov A. B.,Kreines N. M.,Savitsky A. O.,Kravtsov E. A.,Blagodatkov D. V.,Ryabukhina M. V.,Milyaev M. A.,Ustinov V. V.,Pashaev E. M.,Subbotin I. A.,Prutskov G. V. // JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS. - 2015. - V. 120, l. 6. - P. 1041-1054.

ISSN/EISSN:

1063-7761 / 1090-6509

Type:

Article

Abstract:

The effect of the chromium layer thickness on the magnetic state of an {[}Fe/Cr/Gd/Cr] (n) multilayer structure is studied. A series of Fe/Cr/Gd structures with Cr spacer thicknesses of 4-30 is studied by SQUID magnetometry and ferromagnetic resonance in the temperature range 4.2-300 K. The obtained experimental results are described in terms of an effective field model, which takes into account a biquadratic contribution to the interlayer coupling energy and a nonuniform magnetization distribution inside the gadolinium layer (which was detected earlier). Depending on the magnetic field and temperature, the following types of magnetic ordering are identified at various chromium layer thicknesses: ferromagnetic, antiferromagnetic, and canted ordering. A comparison of the experimental and calculated curves allowed us to determine the dependence of the bilinear (J (1)) and biquadratic (J (2)) exchange constants on chromium layer thickness t (Cr). Weak oscillations at a period of about 18 are detected in the J (1)(t (Cr)) dependence in the range 8-30 . The interlayer coupling oscillations in the system under study are assumed to be related to the RKKY exchange interaction mechanism via the conduction electrons of Cr.

Author keywords:

MAGNETIC MULTILAYERS; SPIN CONFIGURATIONS; EXCHANGE; MAGNETORESISTANCE; PERIOD; FILMS

DOI:

10.1134/S1063776115060059

Web of Science ID:

ISI:000358650800015

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6509
Keywords-Plus	MAGNETIC MULTILAYERS; SPIN CONFIGURATIONS; EXCHANGE; MAGNETORESISTANCE; PERIOD; FILMS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	drovosekov@kapitza.ras.ru
ResearcherID-Numbers	Milyaev, Mikhail/J-8070-2013 Ustinov, Vladimir/G-7501-2011 Kravtsov, Evgeny/J-3593-2013 Ryabukhina, Marina/A-4559-2015 Subbotin, Ilia/A-4017-2014
ORCID-Numbers	Milyaev, Mikhail/0000-0001-7828-3571 Ustinov, Vladimir/0000-0002-5155-7947 Kravtsov, Evgeny/0000-0002-5663-5692 Ryabukhina, Marina/0000-0002-2826-3844
Funding-Acknowledgement	Russian Federation {[}NSh-1540.2014.2, NSh-5517.2014.2]; Russian Foundation for Basic Research {[}14-22-01063, 10-02-01110-a]; Russian Science Support Foundation
Funding-Text	This work was supported by grants of the President of the Russian Federation (project no. NSh-1540.2014.2, NSh-5517.2014.2) and by the Russian Foundation for Basic Research (project nos. 14-22-01063, 10-02-01110-a). A. B. Drovosekov and A. O. Savitsky are grateful to the Russian Science Support Foundation for the financial support of their work.
Number-of-Cited-References	30
Usage-Count-Last-180-days	6
Usage-Count-Since-2013	22
Journal-ISO	J. Exp. Theor. Phys.
Doc-Delivery-Number	CN7YB