Fabrication of constricted compositionally-modulated NixFe 1-x nanowires

Abstract

We demonstrate the fabrication of compositionally-modulated Ni xFe1-x nanowires using templated growth electrodeposition techniques. The composition of the Ni and Fe in a grown magnetic layer was modulated by varying the deposition potential during growth. Periodic constrictions were created along the NixFe1-x nanowires via diluted nitric acid etching. Conceptually, the constrictions created along nanowires may induce a low energy well which has an advantage as a potential barrier to trap domain walls in magnetic storage application. © Published under licence by IOP Publishing Ltd.