Table 3 The hyperfine parameters derived from fitting the Mӧssbauer spectra recorded at 298 K and 78 K (between brackets and in italics) for the LaFeO3, La0.70Eu0.30FeO3 and La0.70Eu0.30Fe0.95Cr0.05O3 nanoparticles.

From: Core and surface structure and magnetic properties of mechano-synthesized LaFeO3 nanoparticles and their Eu3+-doped and Eu3+/Cr3+-co-doped variants

 

Sub-spectrum

δ (mms) ± 0.02

ε (mms) ± 0.02

Heff (T) ± 0.2

Area (%) ± 2

LaFeO3

S

0.37(0.47)

− 0.04(− 0.03)

51.5(55.5)

100(100)

La0.7Eu0.3FeO3

S1

0.37(0.47)

− 0.02(− 0.02)

51.0(55.3)

88(89)

S2

0.38 (0.49)

− 0.06 (0.00)

47.3(53.1)

12(11)

La0.7Eu0.3Fe0.95Cr0.05O3

S1

0.37(0.47)

− 0.03(− 0.01)

50.7(55.2)

86(86)

S2

0.41(0.50)

0.04(− 0.03)

47.1(52.6)

14(14)

  1. S magnetic sextet, δ isomer shift, ε quadrupole shift, Heff hyperfine magnetic field.
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