High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L1₀-FePt Reference Layer

Figure 1

(a) Schematics of the Pt(4)/FePt(15)/ZnO(5)/Fe(5)/Pt(3) multilayers on MgO substrate; (b) the core sandwich schematic diagram of L1₀-FePt/ZnO/Fe. The magnetization directions are marked by arrows, and the applied external magnetic field is perpendicular to the film plane; (c) XRD spectra of the Pt(4)/L1₀-FePt(15) bilayer films; (d) SEM image of the Pt(4)/L1₀-FePt(15) bilayer film surface.

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