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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.9
- 수록면
- 309 - 314 (6page)
- DOI
- 10.4283/JMAG.2022.27.3.309
이용수
초록· 키워드
오류제보하기
Magnetic hysteresis curves of cobalt ferrites with a fraction of cobalt being replaced by magnesium (Mg<SUB>x</SUB>Co<SUB>1-x</SUB>Fe₂O₄) were investigated by vibrating sample magnetometry (VSM). The specimens with x ≤ 0.2 were prepared as thin films on silicon substrates by using a sol-gel deposition process. The VSM result revealed that the saturation magnetizations (M<SUB>S</SUB>) of the Mg-substituted specimens were higher than that of CoFe₂O₄. The result of Raman spectral analysis suggested that the Mg-substituted specimens had higher tetrahedral Co<SUP>2+</SUP> density in the spinel lattice compared to CoFe₂O₄. The increase in MS for Mg<SUB>x</SUB>Co<SUB>1-x</SUB>Fe₂O₄ is ascribed to two reasons, the increase in tetrahedral Co<SUP>2+</SUP> density and significant Mg<SUP>2+</SUP> occupation in the tetrahedral sites.
목차
1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References
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