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Title: Barrier dependence of magnetoresistance enhancement in nano-oxide added spin valves
Authors: Li, K.
Wu, Y. 
Qiu, J.
Chong, T. 
Issue Date: 15-May-2002
Citation: Li, K., Wu, Y., Qiu, J., Chong, T. (2002-05-15). Barrier dependence of magnetoresistance enhancement in nano-oxide added spin valves. Journal of Applied Physics 91 (10 I) : 8563-8565. ScholarBank@NUS Repository.
Abstract: The effects of different types of nano-oxides on the properties of spin valves have been studied. The nano-oxides that have been investigated in this study include NiFe-O, Al-O, CoFe-O, Ta-O, and Cu-O. From the point of view of overall properties (magnetoresistance ratio, change of sheet resistance, exchange coupling field, and interlayer coupling field), CoFe-O turned out to be the most desirable oxide when being used as the bottom oxide for top spin valves. As a capping layer for bottom spin valves, however, it was found that Al-O is the best choice among those investigated. Under optimum conditions, IrMn-based dual spin valves with a magnetoresistance ratio up to 21.8% has been successfully fabricated by incorporating oxide layers in both pinned ferromagnetic layers.© 2002 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.1447295
Appears in Collections:Staff Publications

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