Synthesis of single domain strontium ferrite powder by pulsed laser ablation
- 10 June 1996
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 68 (24) , 3491-3493
- https://doi.org/10.1063/1.115768
Abstract
Strontium hexaferrite nanoparticles have been successfully prepared from a sintered SrFe12O19 target, using pulsed excimer laser ablation and cold condensation technique. The as-condensed powders do not exhibit the same magnetic properties as the target material. However, annealing at a high temperature of 850 °C for 3 h in air followed by fast cooling yields very high coercivity of 6665 Oe, exhibiting presence of single domain particles. Vibrating sample magnetometry (VSM), scanning electron microscopy (SEM), and x-ray diffraction (XRD) techniques are used to study the magnetism, microstructure, and phase formation in the powders, respectively.Keywords
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