| Autor: |
Koutzarova, Tatyana, Kolev, Svetoslav, Grigorov, Kornely, Ghelev, Chavdar, Zaleski, Andrzej, Vandenberghe, Robert E., Ausloos, Marcel, Henrist, Catherine, Cloots, Rudi, Nedkov, Ivan |
| Rok vydání: |
2010 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| Popis: |
Thin hexagonal barium hexaferrite particles synthesized using the microemulsion technique were studied. A water-in-oil reverse microemulsion system with cetyltrimethylammonium bromide (CTAB) as a cationic surfactant, n-butanol as a co-surfactant, n-hexanol as a continuous oil phase, and an aqueous phase were used. The microstructural and magnetic properties were investigated. The particles obtained were mono-domain with average particle size 280 nm. The magnetic properties of the powder were investigated at 4.2 K and at room temperature. The saturation magnetization was 48.86 emu/g and the coercivity, 2.4 x 105 A/m at room temperature. The anisotropy field Ha and magneto-crystalline anisotropy K1 were 1.4 x 106 A/m and 2.37 x 105 J/m3, respectively. |
| Databáze: |
arXiv |
| Externí odkaz: |
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