Figure 5: Room temperature microstructure of the aged Fe73Ga27.
From: Highly thermal-stable ferromagnetism by a natural composite

(a) SAED pattern with [001]fcc zone axis, showing the matrix L12 phase and the secondary bcc phase. (b) Orientation relationship between L12 (black) and DO3 (blue) phases. (c) Bright-field image taken with [001]fcc incidence. (d) Dark-field image taken using the fcc superlattice reflection, indicated by red arrow in a. Scale bars, 200 nm (c,d).