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Title: Synthetic Co50Pt50/Ru/CoFe hard-soft trilayer in spin valves
Authors: Qiu, J.J.
Li, K.B.
Han, G.C.
Zheng, Y.K.
Guo, Z.B.
Wu, Y.H. 
Keywords: Coercivity
Exchange bias
Hard-soft trilayer
Interlayer coupling
Spin valve
Issue Date: Aug-2006
Citation: Qiu, J.J., Li, K.B., Han, G.C., Zheng, Y.K., Guo, Z.B., Wu, Y.H. (2006-08). Synthetic Co50Pt50/Ru/CoFe hard-soft trilayer in spin valves. Journal of Magnetism and Magnetic Materials 303 (2 SPEC. ISS.) : e176-e179. ScholarBank@NUS Repository.
Abstract: The influence of deposition power and seedlayer on the properties of hard magnet Co50Pt50 was studied. Co50Pt50(/Co90Fe10)/Ru/Co90Fe10 trilayer was used as pining/pinned layer in spin valves. The influences of different hard layer, soft layer and free layer on exchange bias, interlayer coupling, and magnetoresistance (MR) ratio were studied. Weak antiferromagnetic interlayer coupling was obtained by adjusting the thickness of hard and soft layers. MR of a spin valve with structure Cr2/CoFe0.5/CoPt4/CoFe0.5/Ru0.8/CoFe2.2/Cu2.05/CoFe2.6/Cu1.1/Ta1 reached 10.68% (unit in nm), which is comparable to those of IrMn-based synthetic spin valves. The increment of the coercivity of the free layer is mainly due to the static magnetic interaction between the hard layer and the free layer. © 2006 Elsevier B.V. All rights reserved.
Source Title: Journal of Magnetism and Magnetic Materials
ISSN: 03048853
DOI: 10.1016/j.jmmm.2006.01.047
Appears in Collections:Staff Publications

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