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Fig 1.

Structural and grain size analysis of La3+ substituted Ni-Zn ferrite nanoparticle.

XRD diffraction patterns for the sample of Ni0.5Zn0.5LaxFe1-xO4 nanocrystalline (α: Ni-Zn ferrite; β: iron oxide) at various La+3 substituted concentration.

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Fig 1 Expand

Table 1.

Lattice parameters, interplane distance and crystallite size of Ni0.5Zn0.5LaxFe1-xO4 nanocrystalline.

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Table 1 Expand

Fig 2.

FTIR spectroscopic analysis to identify the types of chemical bonding in La3+ substituted Ni-Zn ferrite nanoparticle.

FTIR spectra for the samples of Ni0.5Zn0.5LaxFe1-xO4 nanocrystalline at various La3+ substitution concentrations.

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Fig 2 Expand

Fig 3.

Morphological analysis of La3+ substituted Ni-Zn ferrite nanoparticle.

FESEM micrographs of typical a) Ni-Zn ferrite (i) 30KX (ii) 50KX and b) Ni0.5Zn0.5LaxFe1-xO4 at (x = 0.02) (i) 30KX (ii) 50KX.

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Fig 3 Expand

Table 2.

The composition of elements of Ni0.5Zn0.5LaxFe1-xO4 nanocrystals at various La3+ substitution concentrations.

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Table 2 Expand

Fig 4.

Magnetic properties of La3+ substituted Ni-Zn ferrite nanoparticle hysteresis loops.

Hysteresis loops of (a) Ni0.5Zn0.5LaxFe1-xO4 nanocrystals at various La3+ substitution concentrations (b) Enlarged view of hysteresis loop.

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Fig 4 Expand

Fig 5.

Magnetic properties of La3+ substituted Ni-Zn ferrite nanoparticle p.

Variation of saturation magnetization (Ms) coercivity (Hc) and remanence (Mr).

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Fig 5 Expand