Effect of Cr Spacer on Structural and Magnetic Properties of Fe/Gd Multilayers

被引：9

作者：

Drovosekov, A. B. ^{[1
]}

Ryabukhina, M. V. ^{[2
]}

Kholin, D. I. ^{[1
]}

Kreines, N. M. ^{[1
]}

Manuilovich, E. A. ^{[1
,3
]}

Savitsky, A. O. ^{[1
,4
]}

Kravtsov, E. A. ^{[2
,5
]}

Proglyado, V. V. ^{[2
]}

Ustinov, V. V. ^{[2
,5
]}

Keller, T. ^{[6
,7
]}

Khaydukov, Yu. N. ^{[6
,7
]}

Choi, Y. ^{[8
]}

Haskel, D. ^{[8
]}

机构：

[1] Russian Acad Sci, Kapitza Inst Phys Problems, Moscow 119334, Russia

[2] Russian Acad Sci, Mikheev Inst Met Phys, Ural Branch, Ekaterinburg 620990, Russia

[3] Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Russia

[4] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia

[5] Ural Fed Univ, Ekaterinburg 620002, Russia

[6] Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany

[7] Heinz Maier Leibnitz Zentrum MLZ, Max Planck Soc Outstn, D-85748 Garching, Germany

[8] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2018年 / 127卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

PHASE-TRANSITIONS; SUPERLATTICES; SCATTERING; FE;

D O I：

10.1134/S1063776118100126

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work, we analyze the role of a thin Cr spacer between Fe and Gd layers on the structure and magnetic properties of a [Fe(35 angstrom)/Cr(t(Cr))/Gd(50 angstrom)/Cr(t(Cr))](12) superlattice. Samples without the Cr spacer (t(Cr)= 0) and with a thin spacer (t(Cr) = 4 angstrom) are investigated using X-ray diffraction, polarized neutron and resonance X-ray magnetic reflectometry, static magnetometry, magneto-optical Kerr effect, and ferromagnetic resonance techniques. Magnetic properties are studied experimentally in a wide temperature range 4-300 K and analyzed theoretically using numerical simulation on the basis of the mean-field model. We show that a reasonable agreement with the experimental data can be obtained considering temperature dependence of the effective field parameter in gadolinium layers. The analysis of the experimental data shows that besides a strong reduction of the antiferromagnetic coupling between Fe and Gd, the introduction of Cr spacers into Fe/Gd superlattice leads to modification of both structural and magnetic characteristics of the ferromagnetic layers.

引用

页码：742 / 752

页数：11

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