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Title: Synthetic antiferromagnet with Heusler alloy Co2 FeAl ferromagnetic layers
Authors: Xu, X.G.
Zhang, D.L.
Li, X.Q.
Bao, J.
Jiang, Y.
Jalil, M.B.A. 
Issue Date: 2009
Citation: Xu, X.G., Zhang, D.L., Li, X.Q., Bao, J., Jiang, Y., Jalil, M.B.A. (2009). Synthetic antiferromagnet with Heusler alloy Co2 FeAl ferromagnetic layers. Journal of Applied Physics 106 (12) : -. ScholarBank@NUS Repository.
Abstract: Heusler alloy Co2FeAl was employed as ferromagnetic layers in Co2FeAl (3 nm)/Ru(x nm)/Co2FeAl (5 nm) synthetic antiferromagnet structures. The experimental results show that the structure with a Ru thickness of 0.45 nm is strongly antiferromagnetic coupled, which is maintained after annealing at 150 °C for 1 h. The structure has a very low saturation magnetization Ms of 425 emu/ cm3, a low switching field Hsw of 4.3 Oe, and a high saturation field H s of 5257 Oe at room temperature, which are favorable for application in ultrahigh density magnetic read heads or other magnetic memory devices. Crystal structure study testifies that the as-deposited Co2FeAl film is in the B2 phase. Therefore, Heusler alloys can be used to fabricate synthetic antiferromagnetic and it is possible to make "all-Heusler" spin valves or magnetic tunneling junctions with better magnetic switching properties and high magnetoresistance. © 2009 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.3271352
Appears in Collections:Staff Publications

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