Structural Dependent Ferromagnetic-Nonmagnetic Phase Change in FePtRu Films

Figure 1

Crystal structure and magnetic properties of disordered FePt_1−xRu_x films before annealing (as-deposited films). (a) Out-of-plane XRD patterns. Magnetization curves of the films with = (b) 0, (c) 0.10, (d) 0.20, and (e) 0.30. Magnetic fields () were applied perpendicular (⊥, dashed line) and parallel (//, solid line) to the film plane at 298 K. (f) Temperature dependence of magnetization ( curve) for the film with = 0.30, measured from 300 K to 30 K with a field of 1 kOe applied parallel to the film plane after saturation. (g) -dependence of at 298 K.