Exchange Coupling in Ni x Mn 100-x /Fe 20 Ni 80 Films

Abstract

The properties of Ni x Mn 100-x /Fe 20 Ni 80 multilayer structures with exchange bias were systematically studied. The influence of composition of Ni x Mn 100-x pinning layers, annealing temperature on crystalline film structures, exchange bias field and coercive force of Fe 20 Ni 80 pinned layers were comparatively analyzed. It was found that the multilayer films with Ni-Mn pinning layer containing some 30 wt.% Ni have the most suitable combination of exchange bias and magnetic hysteresis properties for their technical applications. © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.