MULTI LAYER STRUCTURE WITH SPONTANEOUS EXCHANGE BIAS EFFECT

摘要

The present invention relates to a multi-layer structure with a [NiMn / Co] content (Si/Pt (tPt) /Ni45Mn55 (tAFM) /Co (tFM)/ Pt (30A) ) formulation in which the spontaneous exchange shift effect (SEB) is observed. In this invention, a multi¬ layer structure formulated with (Si/Pt (tPt) /Ni45Mn55 (tAFM) /Co (tFM) /Pt(30A)) was fabricated in which spontaneous exchange shift effect (SEB) was observed without requiring annealing and precipitation processes. The thickness of the NiMn layer and the ferromagnetic Co layer were changed, and the NiMn layer was directly grown on the intermediate layer in order to see this effect.