Magnetic and structural characterization of sputtered FeN multilayer films

Abstract The magnetic and structural properties of ferromagnetic FeN thin films. FeN/FeN (ferromagnetic/paramagnetic) and FeN/SiO 2 multilayers deposited in a rotational dc magnetron sputter system were investigated. Monolithic films containing ⋍ 2 at % N 2 had 4πM s , values ⋍ 25 kG magnetostriction (λ s ) has been related to N 2 content and film thickness. λ s could be varied significantly over a range of compositions where 4 π M s was > 22 kG by adjusting thickness and nitrogen. content. Lamination reduced easy- and hard-axis coercivity to 2 films were magnetostatically coupled.