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(Color online) (a) Typical XRD pattern along withthe calculated and difference pattern (as indicated). (b) Effect of synthesis temperature on particle size and lattice constant. TEM images of (c) 800Q, (d) 800R, and (e) NP22 samples.
(Color online) FT magnitude of EXAFS signal (CEY mode) for the particles synthesized at (a) 800 °C and (b) 1000 °C. (c) Magnitude and real component of FT of EXAFS signal in R space and (d) the real component of FT in the back transformed k space (for 800R sample). In (c) and (d), the fitting to the data (presented by dots) is shown as solid line.
(Color online) (a) FC and ZFC magnetization and (b) MH curve of NP22 nanoparticle. (c)-(e) MT and (f)-(h) MH curves for R and Q samples prepared at different temperatures as indicated. Insets of (c)-(e) show the zoomed view of corresponding ZFC curves with the presence of minima Tm .
Fitting results for Q and R samples (CEY data). Nfrac is fractional occupation of the shells (stoichiometric value is Nfrac = 1), and ss (σ 2) is the disorder parameter.
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