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Published June 1, 2004 | Published
Journal Article Open

Magnetoresistive effects in planar NiFe nanoconstrictions


This study focuses on domain wall resistance in Ni_(80) Fe_(20) nanowires containing narrow constrictions down to 15 nm in width. Distinct differences in the magnetoresistance curves were found to depend on the constriction size. Wider constrictions are dominated by the overall anisotropic magnetoresistance of the structure, while constrictions narrower than ∼40 nm exhibit an additional distinct contribution from a domain wall. The effect is negative and typically varies from 1% to 5%.

Additional Information

© 2004 American Institute of Physics. Presented on 6 January 2004. Published online 25 May 2004. This work was supported by NSF ECS Grant No.9984797.

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