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Investigation of structural, dielectric, and magnetic properties of hard and soft mixed ferrite composites
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10.1063/1.4752030
/content/aip/journal/jap/112/5/10.1063/1.4752030
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/5/10.1063/1.4752030
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Figures

Image of FIG. 1.
FIG. 1.

XRD patterns of the pure ferrites prepared by citrate gel method annealed at 1100 °C.

Image of FIG. 2.
FIG. 2.

X-ray diffraction pattern of (x)BaFe12O19-(1−x)Mn0.2Ni0.4Zn0.4Fe2O4 (x = 0–1) composites heated at 1100 °C.

Image of FIG. 3.
FIG. 3.

X-ray diffraction pattern of (x)BaFe12O19-(1−x)Mn0.2Ni0.4Zn0.4Fe2O4 (x = 0–1) composite at x = 0.8 showing co-existence of both hard and soft phases.

Image of FIG. 4.
FIG. 4.

SEM images of (a) barium ferrites BaFe12O19 annealed at 1000 °C and (b) manganese nickel zinc ferrite Mn0.2Ni0.4Zn0.4Fe2O4 annealed at 900 °C.

Image of FIG. 5.
FIG. 5.

SEM images of composites of mixture (a) 1:4 (BaFe12O19: Mn0.2Ni0.4Zn0.4Fe2O4) and (b) 4:1 (BaFe12O19:Mn0.2Ni0.4Zn0.4Fe2O4) heated at 1100 °C showing the morphology.

Image of FIG. 6.
FIG. 6.

SEM image of composite having equal ratio of soft and hard ferrite at (a) 10 K X and (b) 5 K X.

Image of FIG. 7.
FIG. 7.

Variation of real part of dielectric constant of (x)BaFe12O19-(1−x)Mn0.2Ni0.4Zn0.4Fe2O4 (0 ≤ x ≤ 1) as a function of frequency.

Image of FIG. 8.
FIG. 8.

Variation of imaginary part of dielectric constant of (x)BaFe12O19-(1−x)Mn0.2Ni0.4Zn0.4Fe2O4 (0 ≤ x ≤ 1) as a function of frequency.

Image of FIG. 9.
FIG. 9.

Variation of loss tangent of (x)BaFe12O19-(1−x)Mn0.2Ni0.4Zn0.4Fe2O4 (0 ≤ x ≥ 1) as a function of frequency.

Image of FIG. 10.
FIG. 10.

M-H loops of all the composites of soft (Mn0.2Ni0.4Zn0.4Fe2O4) and hard (BaFe12O19) ferrites annealed at 1100 °C.

Image of FIG. 11.
FIG. 11.

Variation of the coercivity of the composite heated at 1100 °C with composition “x.”

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/content/aip/journal/jap/112/5/10.1063/1.4752030
2012-09-13
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Investigation of structural, dielectric, and magnetic properties of hard and soft mixed ferrite composites
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/5/10.1063/1.4752030
10.1063/1.4752030
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