Matrix Synthesis and Structure of Ni/Cu and Co/Cu Nanowires with Thin Layers

Abstract

Nanowires (NWs) with alternating layers of magnetic and nonmagnetic metals (Ni/Cu, Co/Cu) in track membranes with pores of small diameters (100, 65, and 30 nm) have been obtained by template synthesis. The problem of reducing the thickness of separate layers has been solved. The processes of electrodeposition at a successive decrease in the transmitted charge are investigated. The topography of the obtained structures; the diameters of NWs; and the thickness of separate layers, especially the interfaces between layers, are studied by scanning electron microscopy and transmission electron microscopy with elemental analysis. The potential of the techniques, which previously proved to be efficient in the formation of alternating layers in matrices with pores of large diameters, is estimated.