Figure 4: Average structure evolution of the aged Fe73Ga27.
From: Highly thermal-stable ferromagnetism by a natural composite

(a) In situ heating step-scanned X-ray diffraction profiles with 2θ from 41 to 46°, showing the {111} reflection for L12 phase and the {220} reflection for DO3 phase, respectively. Arrows indicate the shifts of Bragg angle upon heating. (b) Temperature dependences of relative volume fraction of L12 phase and lattice parameters for the two phases.