Layer selective magnetic moment distribution in an epitaxial double spin valve structure: Si(001)/Cu/FeNi/Cu/Co/Cu/FeNi/Cu

被引:3
作者
Choi, BC
Samad, A
Lee, WY
Langridge, S
Penfold, J
Bland, JAC
机构
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[2] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea
[3] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
关键词
magnetic films and multilayers; Polarised Neutron Reflectivity;
D O I
10.1109/20.800685
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We determine layer selectively the magnetic moments, spin orientations and thicknessess of an epitaxial double spin valve structure, Si(001)/Cu/FeNi/Cu/Co/Cu/FeNi/Cu, using Polarised Neutron Reflectivity (PNR), At saturation, the layer-averaged magnetic moment per Co atom was found to be 1.71 +/- 0.08 mu(B), while the top (bottom) FeNi layer moment was 1.08 +/- 0.06 mu(B) (0.95 +/- 0.08 mu(B)) For an applied field strength Ii, smaller than the Co layer coercive field of similar to 100 Oe, the Co and FeNi layer magnetisation vectors are found to lie in-plane but canted with respect to each other in contrast to the fully antiparallel state predicted by simple energy minimisation, The observed canting is discussed with regard to the role of magnetic domains in the Co layer.
引用
收藏
页码:3847 / 3849
页数:3
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