Microstructural Analysis and Magnetic Characterization of Native and Magnetically Modified Montmorillonite and Vermiculite

Table 3

Mössbauer parameters of paramagnetic fraction in the montmorillonite samples; original (Mt) and magnetically modified (MMt) state; T (K): temperature of measurement.

T (K)	295		7
	Mt	MMt	Mt	MMt
δ1 (mm/s)	0.41 (6)	0.22 (1)	0.48 (3)	0.42 (1)
δ2 (mm/s)	0.20 (3)	0.31 (1)	0.32 (3)	0.22 (1)
δ3 (mm/s)	1.26 (3)	—	0.46 (4)	0.67 (1)
δ4 (mm/s)	0.22 (6)	—	0.42 (4)	—
ΔEQ1 (mm/s)	0.52 (7)	0.42 (1)	0.58 (5)	0.54 (1)
ΔEQ2 (mm/s)	0.46 (1)	0.04 (1)	0.42 (3)	0.00 (1)
ΔEQ3 (mm/s)	0.84 (10)	—	1.36 (13)	1.02 (1)
ΔEQ4 (mm/s)	2.06 (14)	—	2.30 (7)	—