Electrodeposited magnetic multi-nano-layers M. Lakatos-Varsa ´nyi a, * , A. Miko ´ a , L.K. Varga b , E. Ka ´lma ´n a,c a Bay Zolta ´ n Institute for Material Science Budapest, Fehe ´rva ´ri u ´ t 130, Hungary b Research Inst. Solid State Physics and Optics, 1525 Budapest, POB 49, Hungary c Chemical Research Center, Hung. Acad. Sciences, 1525 Budapest, POB 17, Hungary Available online 13 August 2004 Abstract A combined electrochemical technique was developed to prepare iron layers with nano- sized grains and subsequently Fe/Fe-oxide multilayers. Cyclic voltammetric and chrono- amperometric measurements were used to investigate the formation process of iron oxide quasi-isolating nano-layer. Based on these measurements the experimental parameters have been established to prepare iron layers by pulse plating and to insulate it by potentiostatic ano- dic oxidation in the same electrolyte. The inductive elements based on these magnetic metal/ metal-oxide multilayers are promising materials for high frequency applications. Ó 2004 Published by Elsevier Ltd. Keywords: A. Electronic material, Metal coating; B. Cyclic voltammetry, SEM, Magnetic properties 1. Introduction Recently there have been numerous studies to produce magnetic nano-structured materials, thin films and multilayers [1–4]. A multilayer consists of different materials built up on top of each other at the atomic scale. New phenomena, unknown in bulk 0010-938X/$ - see front matter Ó 2004 Published by Elsevier Ltd. doi:10.1016/j.corsci.2004.07.006 * Corresponding author. E-mail address: mlakatos@bzaka.hu (M. Lakatos-Varsa ´nyi). Corrosion Science 47 (2005) 681–693 www.elsevier.com/locate/corsci