Preparation and Characterization of Manganese Ferrite Aluminates

Table 4

Room temperature Mössbauer’s effect parameters for MnAl _x Fe_2.0−xO₄ system as a function of x.

Composition (𝑥)	site	Isomer shift^∗	Quadrupole splitting	𝐻hfs	Area (%)	Fe^3+(B)/Fe^3+(A)
		(𝛿±0.01) mm/s	(Δ±0.01) mm/s	(±2.0 T)
0.0	B	0.18	0.00	47.71	77.74	3.49
	A	0.11	0.00	43.48	22.26
0.2	B	0.17	0.00	47.16	75.15	3.02
	A	0.11	0.00	42.71	24.85
0.4	B	0.16	0.00	46.46	72.01	2.57
	A	0.10	0.00	42.41	27.99
0.6	B	0.13	0.00	45.34	68.92	2.20
	A	0.10	0.00	40.58	31.08
0.8	B	0.12	0.00	42.82	62.88	1.69
	A	0.10	0.00	36.94	37.12
1.0	B	0.11	0.00	41.80	55.90	1.26
	A	0.10	0.00	36.54	44.10

^∗Isomer shift given relative to 𝛼-Fe.