Fig. 2: The control of the D vector.

a Schematic of the magnetization configuration in the FePt(4)/Pt(1.5)/Fe(1) film at θ = 30°. b Schematic of the magnetization configuration in the FePt(4)/Pt(1.5)/Fe(1) film at θ = -30°. c, d Field-free magnetization switching of the FePt(4)/Pt(1.5)/Fe(1) film before (black) and after (red) generation of D vector at θ = 30°and −30°.