Magnetic and Electrical properties of Vitrovac/Au/Vitrovac multilayered obtained by means of magnetron sputtering

Abstract

Abstract We report the effect of the intermediate nonmagnetic layer and the influence of the thickness on the magnetic and electrical properties in Co-based amorphous multilayered, whose composition is VITROVAC-6030/Au/VITROVAC-6030; and these were deposited by DC magnetron sputtering technique. In all samples, the first VITROVAC-6030 layer was deposited on silica glasses substrate, with thickness from 30 to 125 nm, and the middle layer is Au with 5 nm thickness; in top, the VITROVAC-6030 layer was deposited with 30 nm thickness. Additionally, the photolithography process was employed to etch strip patterns on multilayered with length 1 cm and width between 0.1 mm to 1 mm; that it can induce magnetic anisotropy, therefore a change in easy magnetic axis. Finally, we have also made a comparison of magnetic and electrical properties between multilayered and strip patterns on multilayered; where the electrical resistance of multilayered depends on both VITROVAC and Au layer thickness, and electrical measurements show a conductive behavior with high resistance value.