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The cell constants of the powders obtained at their corresponding phase undoped NiCr2O4(a-Pure) and La doped NiCr2O4(b-0.01; c-0.02; d-0.03; and e−0.04).
| Samples | Samples size (nm) | Cell constant, a (A °) |
% lattice deviation from theoretical value | |
|---|---|---|---|---|
| Experimental | Theoretical | |||
| a | 24.69 | 8.0850 | 8.1060 | +0.259 |
| b | 22.17 | 8.0285 | 7.9769 | +0.647 |
| c | 20.94 | 8.0297 | 7.9976 | +0.781 |
| d | 19.22 | 8.1256 | 8.0790 | +0.577 |
| f | 16.19 | 8.1338 | 8.0800 | +0.742 |
