Table 3.
Calculated RP and χ2 parameters, phase sizes, and percentages obtained by Rietveld refinement of X-ray diffraction patterns of Au@MnFe2O4 (gold-decorated nanoparticles) and MnFe2O4/Au (core/shell nanoparticles).
| Sample | Ox,y,z (*) | i (**) | Phase Size (nm) Lattice Constant (nm) |
Au (wt%) | RP | χ2 | |
|---|---|---|---|---|---|---|---|
| MnFe2O4 | Au | ||||||
| Au@MnFe2O4 | 0.3865 | 0.2 (+) | 26.7 0.8498 |
41.9 0.4078 |
12.8 | 10.5 | 1.96 |
| MnFe2O4/Au | 0.3885 | 0.2 (+) | 28.8 0.8497 |
27.9 0.4078(+) |
74.7 | 9.4 | 1.62 |
(*) Value of Ox,y,z in CIF file 2300618 is 0.25053 (**) Degree of inversion (+) fixed to value in reference [48].