Studies of Magnetic Structure of Cobalt-ferrite Nano-particles | ||
| Egyptian Journal of Solids | ||
| Article 12, Volume 31, Issue 1, December 2008, Pages 147-156 PDF (355.76 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejs.2008.148828 | ||
| Abstract | ||
| By means of Mössbauer effect spectroscopy, ultrafine cobalt-ferrite particles was studied. The spectra were obtained between 14 K and 300 K, and also at 5 K with 4 T applied external magnetic field. The spectra obtained with large magnetic fields demonstrated the non-collinear magnetic structure occurs in the surface layers of the Co-ferrite system. The importance of the applied field during the measurements for a correct characterization and the coating effect were shown. The measurements illustrated that coating the surface of CoFe2O4 particles with oleic acid does not necessarily explain the canting of spins observed. | ||
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