Figure 3: Multiple magnetic phases coexistence.

(a) and (b) Schematic diagrams of coexistence of three magnetic phases in the as-prepared and oxygen annealed Co0.5(Mg0.55Zn0.45)0.5O1-v films. The red, blue, and green regions represent for ferromagnetic regions, superparamagnetic clusters, and non-magnetic boundaries, respectively. (c) Bright field image and (d) reconstructed phase image of electron holography of the as-prepared Co0.5(Mg0.55Zn0.45)0.5O1-v films.