STRUCTURE AND MAGNETIC-PROPERTIES OF FE ZR MULTILAYERS/

In this paper we report results of investigation into structure and ma gnetic properties of as-deposited Fe/Zr multilayers with different wav elength of modulation, lambda, and thicknesses ratio of sublayers r = d(Fe)/d(Zr). Three series of samples with r equal to 0. 5, 1, 2 and la mbda from 12 nm to 1.2 nm were prepared by sputtering technique. The s amples were studied by X-ray diffraction and torque curve measurements . It is shown that during deposition amorphization process takes place at interfaces. For nominal Fe sublayer thickness d(Fe) smaller than 2 nm the multilayers are found to be completely amorphous independently of r, and consist of alternating Fe-rich and Fe-poor amorphous sublay ers.