Perpendicular magnetic anisotropy in FePt/AlN layered structure

Magnetoelastically induced perpendicular magnetic anisotropy and perpendicular exchange bias of CoO/CoPt multilayer films

“…A few years later, PMA was also observed in Co/Au, Co/Pt and Co/Ru systems, of which the magnetic anisotropy could be enhanced by improving the interface quality [2][3][4]. Recently, AlN was used instead of noble metal layer to avoid interdiffusion and PMA was obtained in CoPt/ AlN and FePt/AlN systems after thermal annealing at temperatures up to 600°C [5,6]. In such multilayer films, it was considered that both interface anisotropy and magnetoelastic effect played important roles in promoting PMA.…”

“…During the past decades, multilayer films with perpendicular magnetic anisotropy (PMA) have been proposed in various configurations [1][2][3][4][5][6]. In 1985, Carcia firstly reported PMA for layered structure in Co/Pd system, and explained the mechanism responsible for PMA in terms of the interface anisotropy originated from the broken symmetry at the interface [1].…”