Structural and magnetic studies of Co layer in epitaxially grown Fe/Co bilayers

被引：2
|
作者：
Wang, S. G. [1 ]
Wang, C.
Kohn, A.
Lee, S.
Goff, J. P.
Singh, L. J.
Barber, Z. H.
Ward, R. C. C.
机构：
[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England
[2] Univ Oxford, Dept Mat, Oxford OX1 3PH, England
[3] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England
[4] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 09期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1063/1.2672175
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Epitaxial Fe/Co bilayers were grown on MgO (001) substrates by molecular beam epitaxy, characterized in situ by reflection high-energy electron diffraction and ex situ by x-ray diffraction (XRD), as well as high-resolution transmission electron microscopy (HRTEM). The hexagonal close packed (hcp) structure in two perpendicular domains was identified for the Co layer using XRD and HRTEM techniques. Co is found to grow in the (11-20) orientation with the c axis in plane, parallel either to Fe[110] or Fe[1-10] The magnetic properties as a function of Co thickness in Fe (10 nm)/Co (t) (t=5-20 nm) bilayers were investigated. The Fe/Co bilayers exhibit in plane magnetization with easy axes parallel to Fe[100] and Fe[010] axes. The magnetic behavior is consistent with the orientation relationship between the Fe and Co layers.
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页数：3
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