Fig. 3 XRD patterns of the La0.7Sr0.3MnO3 nanoparticles prepared
by thermal decomposition of the precursor A at 600, 700, 800, 900,
and 1000◦C for 6 h. (a) 2θ = 20–80 degrees (b) 2θ = 22–48 degrees
(R and C identify as rhombohedral and cubic phase, respectively) or
(R: rhombohedral phase and C: cubic phase)