STRUCTURE AND PROPERTIES OF NAOSTRUCTURED MAGNETIC FILMS PREPARED BY ELECTROLESS AND SPUTTER DEPOSITIONS

摘要

Nanostructured polycrystalline films with grain size less than 100 nm have a significant amount of grain boundary and interface. Control of the grain size, chemistry, structure, microstructure and interface is essential to control the material properties. In this paper we present an overview of some of our work of nanostructured magnetic Ni_xCo_(100-x) and Co_(72)Cr_(21)Pt_7/Ti films. These films were deposited using non-aqueous electroless polyol method and sputtering. The films were studied using x-ray scattering, anomalous x-ray scattering, extended x-ray absorption fine structure, scanning electron microscopy, transmission electron microscopy, atomic force microscopy, x-ray photoelectron spectroscopy, vibrating sample magnetometry and alternating gradient magnetometry. The effects of long-range order and short-range order, and the interfaces on the properties of the films are presented and discussed.