Figure 10

PNR profiles measured at 15 K in a field of H_a= −10 kOe are shown (closed symbols) along with the simulations (open symbols).

The closed or open symbols represent intensities in the R _{+ +} (red) and R_{− −} (black) channels. The simulations are done using model 1, 2, 3 and 4. The simulations are in support of magnetic helices or considering 2π domain walls instead of uniform magnetization within the layers. Schematics of the corresponding helical configurations at the Fe-Dy interface opted for the simulations are shown alongside. Note that none of the models work.