Hexagonal barium ferrite () nano-particles have been successfully synthesised using selfassembly method. Diethyleneamine (DEA) surfactant was used to fabricate the micelle structure of Ba-DEA complex under various DEA concentrations. powders were synthesized with addition Fe ions to Ba-DEA complex and then heat treated at temperature range of 800-1000. The molar ratio of Ba/DEA and heat-treatment temperature significantly affected the magnetic properties and morphology of powders. powders synthesized with Ba/DEA molar ratio of 1 and heat-treated at 1000 for 1 hour showed the coercive forces (iHc) of 4.84 kOe with average crystal size of about 200 nm.

• 최문희 | Choi Moon-Hee
• 유지훈 | Yu Ji-Hun
• 김동환 | Kim Dong-Hwan
• 이혜문 | Lee Hye-Mum
• 김수민 | Kim Su-Min
• 김양도 | Kim Yang-Do