TITLE

Current-perpendicular-to-the-plane giant magnetoresistance of an all-metal spin valve structure with Co40Fe40B20 magnetic layer

AUTHOR(S)
You, C. Y.; Tian, N.; Goripati, H. S.; Furubayashi, T.
PUB. DATE
April 2010
SOURCE
Applied Physics Letters;4/5/2010, Vol. 96 Issue 14, p142503
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A current-perpendicular-to-the-plane giant magnetoresistance is demonstrated at room temperature by using Co40Fe40B20 alloy with an exchange biased stack of IrMn/CoFeB/Cu/CoFeB. The GMR effect is significantly enhanced by inserting a Co75Fe25 layer between CoFeB and Cu spacer to adjust the interfacial resistance and improve the interfacial asymmetric spin scattering at the interfaces with spacer. Microstructure observation shows that boron of the top CoFeB layer prefers to be enriched at the interface with Ru capping layer after annealing.
ACCESSION #
49071244

 

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