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Zeitschriften
Materials Science-Poland
Band 34 (2016): Heft 2 (June 2016)
Uneingeschränkter Zugang
Magnetic studies of 0.7(Fe
2
O
3
)/0.3(ZnO) nanocomposites in nanopowder form and dispersed in polymer matrix
Janusz Typek
Janusz Typek
,
Kamil Wardal
Kamil Wardal
,
Grzegorz Zolnierkiewicz
Grzegorz Zolnierkiewicz
,
Anna Szymczyk
Anna Szymczyk
,
Nikos Guskos
Nikos Guskos
,
Urszula Narkiewicz
Urszula Narkiewicz
und
Elzbieta Piesowicz
Elzbieta Piesowicz
| 24. Mai 2016
Materials Science-Poland
Band 34 (2016): Heft 2 (June 2016)
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Article Category:
Research Article
Online veröffentlicht:
24. Mai 2016
Seitenbereich:
286 - 296
Eingereicht:
20. Mai 2015
Akzeptiert:
11. Jan. 2016
DOI:
https://doi.org/10.1515/msp-2016-0032
© 2016 Wroclaw University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fig. 1
SEM (left) and TEM (right) images of 0.7(Fe2O3)/0.3(ZnO) nanopowder.
Fig. 2
Temperature dependence of the magnetic susceptibility in ZFC and FC modes of 0.7(Fe2O3)/0.3(ZnO) nanopowder (a) and dispersed in polymer 0.7(Fe2O3)/0.3(ZnO) (b) measured in two different magnetic fields (100 Oe and 1000 Oe).
Fig. 3
Isothermal magnetization M(H) of nanopowder sample (a, b) and polymer sample (c, d). Solid line in (a) for T = 290 K is the fit to the modified Langevin function. (b) and (d) present magnetization in low magnetic fields (hysteresis loops).
Fig. 4
FMR spectra of 0.7(Fe2O3)/0.3(ZnO) nanopowder (a, b) and dispersed in polymer 0.7(Fe2O3)/0.3(ZnO) (c, d) recorded at a few different temperatures.
Fig. 5
Integrated intensity (left axis) of nanopowder (full squares) and polymer (full triangles) samples, and apparent resonance field (right axis) of nanopowder (open squares) and polymer (open triangles) samples.
Fig. 6
Experimental (dots) and fitted (line) FMR spectra, with two components of fitted line of 0.7(Fe2O3)/0.3(ZnO) nanocomposite at 15 K (a), 290 K (b) and the nanocomposite doped in the polymer PEN-b-PTMO at 17 K (c), 290 K (d).
Fig. 7
Temperature dependence of the calculated true resonance field of the nanopowder (full and open squares) and the polymer (full and open triangles) samples.
Fig. 8
Temperature dependence of the calculated true linewidth of the nanopowder (full and open squares) and the polymer (full and open triangles) samples.
Fig. 9
Temperature dependence of the effective anisotropy field Ha calculated from equation 3 for both types of samples.
Fig. 10
Heat flow of neat PEN-b-PTMO (full squares) and PEN-b-PTMO containing 0.1 % of the nanopowder (full triangles), mass loss of neat PEN-b-PTMO (open squares) and PEN-b-PTMO containing 0.1 % of the nanopowder (open triangles), in air (a) and in argon (b) atmosphere.