FABRICATION AND MAGNETIC-PROPERTIES OF ARRAYS OF METALLIC NANOWIRES

Arrays of ferromagnetic nickel and cobalt nanowires have been fabricat ed by electrochemical deposition of the metals into templates with nan ometer-sized pores prepared by nuclear track etching. These systems di splay distinctive characteristics because of their one-dimensional mic rostructure. The preferred magnetization direction is perpendicular to the film plane. Enhanced coercivities as high as 680 oersteds and rem nant magnetization up to 90 percent have also been observed.