Fig. 2: Mechanisms and experimental validation of magnetic coupling transition.
From: Parallel writing of magnetic tunnel junctions by electrical control of interlayer magnetic coupling
a Schematics of the magnetostatic interaction in an orange peel couplings system. b The energy difference (ΔE) between AFM coupling and FM coupling vs. magnetic anisotropy constant Ku. c Temperature dependence of Ku. d Cross-sectional TEM micrographs comparing interface roughness in fabricated MTJs: smooth (h = 0.1 nm) vs. orange-peel (h = 0.4 nm) interfaces. e Tunnel magnetoresistance (TMR) versus perpendicular magnetic field (H) for d = 1.2 nm at varying temperatures. f Hoffset as a dependence on the temperature with different h. Temperature-dependent offset field (Hoffset) evolution with different interface roughness.
