Abstract
Single-phase W-type hexaferrite, BaCo2Fe16-2x(ZrMn) xO27 (x=0.01.0), has been synthesized by the chemical co-precipitation technique. Mössbauer analysis indicates substitution of Zr ions on tetrahedral (4e and 4fIV) sites and Mn ions on the octahedral '4fVI site' at low-doped concentration when the concentration is increased Mn ions but show preference for the octahedral '2b site'. The highest enhancement in the value of the room temperature resistivity of 2.82×109 cm has been obtained by doping with ZrMn content of x=0.6. The dissipation factor increases from 6.49×103 to 9.97×103 at 10 kHz with the addition of ZrMn dopants. Such materials are potentially suitable for electromagnetic attenuation purposes, for microwave absorption and as radar absorbing material. High values of saturation magnetization (67 emu/g) and remanent magnetization (34.7 emu/g) are obtained for substitution level of x=0.4 making them suitable for data processing devices.
Original language | English |
---|---|
Pages (from-to) | 2137-2144 |
Number of pages | 8 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 323 |
Issue number | 16 |
DOIs | |
Publication status | Published - 2011 Aug |
Keywords
- Co-precipitation
- Electronic characterization
- Hexaferrites
- Magnetic properties
- Mössbauer analysis
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics