Magnetic properties of barium ferrite dispersed within polystyrene-butadiene-styrene block copolymers
Magnetic properties of nanocomposite materials obtained by dispersing barium ferrite nanoparticles within polystyrene-butadiene-styrene block copolymer, in the temperature range, 300 to 500 K are reported. The temperature dependence of the magnetization at saturation, averaged uniaxial magnetocrysta...
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| Published in | Journal of nanoscience and nanotechnology Vol. 9; no. 6; p. 3678 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.06.2009
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| Online Access | Get more information |
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| Summary: | Magnetic properties of nanocomposite materials obtained by dispersing barium ferrite nanoparticles within polystyrene-butadiene-styrene block copolymer, in the temperature range, 300 to 500 K are reported. The temperature dependence of the magnetization at saturation, averaged uniaxial magnetocrystalline anisotropy, and coercive field of thick films are analyzed. A "matrix effect" was noticed within the glass transition range of the hard component (polystyrene) of the polymeric matrix. The reported modifications of the magnetic properties were assigned to the competition between the magnetic and mechanical reorientation of nanoparticles within the polymeric matrix. Such modifications were not observed in barium ferrite dispersed in cement. |
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| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2009.NS50 |