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Static and dynamic magnetic behavior of nanocrystalline and nanocomposites of
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10.1063/1.3499644
/content/aip/journal/jap/108/9/10.1063/1.3499644
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3499644

Figures

Image of FIG. 1.
FIG. 1.

XRD patterns of MZFS with, (a) , (b) , (c) , and (d) annealed at , ( represent the peak of ).

Image of FIG. 2.
FIG. 2.

Results of HRTEM observations of MZFS (a) micrographs of with , (b) and (c) micrographs of with , (d) histogram along with particle size distributions of with , and (e) and (f) SAED and lattice fringe patterns of with .

Image of FIG. 3.
FIG. 3.

FC and ZFC magnetization curves of MZFS annealed at 400 and with (a) and (b) , respectively.

Image of FIG. 4.
FIG. 4.

Variations in H/M with temperature of MZFS (a), (c) , 0.25 annealed at , and (b) and (d) and 0.25 annealed at , respectively.

Image of FIG. 5.
FIG. 5.

Variation in with T. symbol (◼) the experimental while the solid line is theoretical fit of MZFS, and annealed at . Inset shows the distribution of blocking temperature.

Image of FIG. 6.
FIG. 6.

Variation in magnetization with applied field of MZFS (a), (b) and 0.25 annealed at , and (c) and (d) and 0.25 annealed at , respectively.

Image of FIG. 7.
FIG. 7.

Variations in maximum magnetization as a function of temperature of MZFS (a) , (b) both annealed at , (c) , and (d) both annealed at .

Image of FIG. 8.
FIG. 8.

vs (H/T) curve fitting to Eq. (5) of MZFS, , annealed at . (◼) is experimental and solid line shows the fitting.

Image of FIG. 9.
FIG. 9.

Langevin fitting of MZFS at RT. Symbol shows the experimental while the solid line is fitted curve. (○) and (●) are the symbols for and 0.25 annealed at and (△), (▲) for and 0.25 annealed at , respectively.

Image of FIG. 10.
FIG. 10.

Variation in ac induction as a function of ac magnetic field observed at 50 Hz of MZFS (a) with , 0.10, 0.15, and 0.25 and annealed at and (b) with and at different annealing temperatures.

Image of FIG. 11.
FIG. 11.

ac hysteresis loops observed at 50 Hz of MZFS (a) with , 0.10, 0.15, and 0.25 and annealed at and (b) with and at different annealing temperatures.

Image of FIG. 12.
FIG. 12.

RT ac hysteresis loops of MZFS with and annealed at at different frequencies.

Image of FIG. 13.
FIG. 13.

Variation in coercive field of MZFS with and annealed at with frequency.

Tables

Generic image for table
Table I.

Annealing temperatures together with lattice parameters and particle sizes of MZFS obtained from the XRD, TEM, and dc magnetic measurements.

Generic image for table
Table II.

Anisotropies and particle sizes of MZFS with , 0.10, and 0.25 annealed at 400 and obtained from difference of FC and ZFC magnetizations with different frequency factor.

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/content/aip/journal/jap/108/9/10.1063/1.3499644
2010-11-04
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Static and dynamic magnetic behavior of nanocrystalline and nanocomposites of (Mn0.6Zn0.4Fe2O4)(1−z)(SiO2)z(z=0.0,0.10,0.15,0.25)
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3499644
10.1063/1.3499644
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