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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.12
- 수록면
- 453 - 457 (5page)
- DOI
- 10.4283/JMAG.2020.25.4.453
이용수
초록· 키워드
오류제보하기
Structural and magnetic properties of Sc-substituted cobalt ferrites were studied by X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and vibrating-sample magnetometry. The Sc<SUB>x</SUB>CoFe<SUB>2-x</SUB>O₄ (x ≤ 0.3) specimens prepared as thin films by a sol-gel deposition method were polycrystalline having cubic spinel structure with a small increase in the lattice constant compared to CoFe₂O₄. The Raman spectral analyses suggested that the Sc-doped specimens have higher tetrahedral Co<SUP>2+</SUP> population than that of pristine CoFe₂O₄. The magnetic hysteresis curves of the Sc<SUB>x</SUB>CoFe<SUB>2-x</SUB>O₄ specimens indicated that the saturation and remanent magnetization decrease proportionally with the increase of Sc composition (x). The decrease in the ferrimagnetic parameters is understandable in terms of the octahedral substitution of non-magnetic Sc<SUP>3+</SUP> ions. However, the octahedral Sc<SUP>3+</SUP> ions caused an increase of the coercivity.
목차
1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References
참고문헌 (18)
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