Magnetotransport Measurements of Domain Wall Propagation in Individual Multisegmented Cylindrical Nanowires

Magnetotransport measurements were performed on multisegmented Co/Ni nanowires (NWs) fabricated by template-assisted electrodeposition. Individual NWs were isolated and electrodes patterned to study their magnetization reversal process. The magnetoresistance reversal curve of the multisegmented NW exhibits a step in the switching field. Micromagnetic simulations of the magnetization reversal process are in agreement with the experimental findings and attribute the step at the switching field to the pinning of a domain wall at the interface of the Co/Ni NW.