Figure 3
From: Inducing Dzyaloshinskii–Moriya interaction in symmetrical multilayers using post annealing
(a) Top view of L12 Ni3Fe crystal structure with primitive lattice constant, 3.54 Å, where the blue (red) spheres denote the Ni (Fe) atoms. (b) Top view of FCC Pt crystal structure with primitive lattice constant, 2.81 Å. The in-plane lattice vectors are chosen so as to minimize the in-plane lattice mismatch between Ni3Fe and Pt to 2%. (c, d, e) Side views of the Ni3Fe(1 nm)/Pt(0.85 nm) bilayer device for various levels of substitutional disorders introduced at the interface via switching the Ni and Pt positions. (f) Calculated interfacial DMI versus concentration of Fe elements interfaced with Pt film.
