[NiFe/Cu/Co/Cu]_n multilayered nanowires was electrodeposited into the pores of an anodic alu-minum oxide(AAO)template by the union of single bath and dual bath method.Scanning electronic mi-croscopy(SEM)and transmission electron microscopy(TEM)were used to characterize the morphology andmultilayered structure of multilayered nanowires.The results show that the layer thicknesses are very uni-form and the multilayered structure is clear and regular.The thickness of NiFe,Cu and Co segment is about40,60 and 15 nm respectively.The multilayered nanowires array is highly ordered.Energy dispersive X-rayspectroscopy(EDS)was used to characterize the components of multilayered nanowires.The results showthat the atomic ratio of Ni to Fe is 4:1.X-ray diffraction was used to characterize the structure of multilay-ered films and multilayered nanowires.The results show that multilayered films is face-centered-cubic(fcc),NiFe layer of multilayered nanowires is face-centered-cubic(fcc),Cu layer is hexagonal closed-packedhcp(100),Co layer is face-centered-cubic(fcc).With the same composition and structure,[NiFe/Cu/Co/Cu]_nmultilayered nanowires has a more superior performance of giant magnetoresistance than multilayered films.

Key words: [NiFe/Cu/Co/Cu]_n, multilayered nanowires, electrochemical, characterization