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커뮤니티
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.12
- 수록면
- 650 - 656 (7page)
- DOI
- 10.4283/JMAG.2019.24.4.650
이용수
초록· 키워드
오류제보하기
We report the phase stability, microstructure and magnetic properties of MgFe2O4 nanoparticles under different annealing conditions. Magnetic properties of MgFe2O4 are strongly influenced by the crystal structure and morphology, which in turn, depend on annealing conditions. The as-prepared and samples annealed at 1200 °C show a pure spinel phase. Whereas the samples annealed and quenched at 600 °C-1000 °C exhibit the spinel phase along with a small fraction of the secondary phase of α-Fe₂O₃, which causes deterioration of magnetic properties. On the other hand, samples annealed at 600 °C-1000 °C under Argon atmosphere display superior magnetic properties (M = 44-56 emu/g at room temperature) due to the presence of pure spinel phase. Interestingly, the sample quenched at 1200 °C exhibits large saturation magnetization, MS = 63 emu/g at 5 K which is arising from the optimum cationic distribution (δ = 0.77) grown at elevated temperature is retained in the rapid cooling process.
목차
1. Introduction
2. Experimental Details
3. Results and Discussions
4. Conclusions
References
참고문헌 (25)
참고문헌 신청
A. Goldman / 2006 / Modern ferrite technology / Springer
Asahi Tomitaka / 2011 / Evaluation of Magnetic and Thermal Properties of Ferrite Nanoparticles for Biomedical Applications / Journal of Magnetics 16(2):164~168
Y. Pan / 2013 / Electrochim. Acta 109:89
R. Dillert / 2015 / APL Mater 3:104001
K. Kirchberg / 2017 / J. Phys. Chem. C 121:27126
Asahi Tomitaka / 2011 / Evaluation of Magnetic and Thermal Properties of Ferrite Nanoparticles for Biomedical Applications / Journal of Magnetics 16(2):164~168
Y. Pan / 2013 / Electrochim. Acta 109:89
R. Dillert / 2015 / APL Mater 3:104001
K. Kirchberg / 2017 / J. Phys. Chem. C 121:27126
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