Fig. 5: First-principles calculations of IL-DMI.

a Side of the FePt/Pt/Fe film with the broken in-plane symmetry simulated by shifting the top Fe a/4 along the x- and y-directions. Here, a is the lattice constant. b Component of DIL along SFe × SFePt as a function of the magnetic moment orientation φ in the as-prepared and D-generated cases. SFe and SFePt are the spin vectors of the Fe and FePt layers, respectively. φ is the angle between SFe and the x-direction.