Patent ID: 6975533

Claim:
A thin film hybrid magnetoelectronic spin-based memory cell comprising: i) a first thin film ferromagnetic layer with a first changeable magnetization state that can be altered to store a data value; wherein said first thin film ferromagnetic layer is coupled to a first electrode; ii) a second thin film ferromagnetic layer with a second non-changeable magnetization state; wherein said second thin film ferromagnetic layer is coupled to a second electrode; iii) a third thin film layer which is less than 1 micron in thickness and is situated between said first thin film ferromagnetic layer and said second thin film ferromagnetic layer, said third thin film layer comprising a low transmission barrier material with electron bands that are not significantly affected by an electron spin; wherein a spin polarized current flows in a path through a thin film stack situated over a silicon substrate, including at least said second electrode, said second thin film ferromagnetic layer, said third thin film layer, said first thin film ferromagnetic layer and said first electrode respectively; further wherein said data value can be determined by measuring a value of said variable spin polarized current which varies in accordance with a relationship between said first changeable magnetization state and said second non-changeable magnetization state.