X-ray resonant magnetic scattering by Fe/Cr superlattices

被引：2
|
作者：
Nefedov, A [1 ]
Grabis, J [1 ]
Bergmann, A [1 ]
Radu, F [1 ]
Zabel, H [1 ]
机构：
[1] Ruhr Univ Bochum, Inst Expt Phys 4, D-44780 Bochum, Germany
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2005年 / 37卷 / 02期
关键词：
X-ray resonant magnetic scattering; antiferromagnetically coupled superlattice;
D O I：
10.1016/j.spmi.2004.07.004
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have studied the structural and magnetic properties of an antiferromagnetically (AF) coupled Fe/Cr superlattice by means of soft x-ray resonant magnetic scattering. Strong and purely magnetic Bragg peaks are observed at the half-order positions in reciprocal space parallel to the [00 1] growth direction and in between the structural Bragg reflections from the superlattice periodicity. The magnetic hysteresis loops measured at the first-order and at the half-order Bragg peaks clearly demonstrate the strong AF coupling of the Fe/Cr multilayer. Transverse scans and off-specular reflectivity measurements confirm an AF domain structure of the superlattice in remanence with large perpendicular correlation. In addition, the transverse scan of the half-order Bragg peak exhibits a Lorentzian line shape at zero field, which diminishes in higher fields, indicative of a remanent multidomain state approaching a single-domain state towards saturation. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：99 / 106
页数：8
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