(American Institute of Physics, 2004-06-01) Florez, S. H.; Dreyer, M.; Schwab, K.; Sanchez, C.; Gomez, R.D.
This study focuses on domain wall resistance in Ni80Fe20 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%.
