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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.6
- 수록면
- 188 - 195 (8page)
- DOI
- 10.4283/JMAG.2017.22.2.188
이용수
초록· 키워드
오류제보하기
The ferromagnetic resonance and other magnetic properties dependence on Ni<SUP>2+</SUP>/Fe<SUP>3+</SUP> ratio and crystallite size were investigated for nano nickel ferrite (NiFe₂O₄). The crystallite size was controlled by controlling the nickel content in the starting material solution. The XRD and TEM were utilized to measure the crystallite size through Scherrer formula and particle size respectively. The most frequent particle sizes were lower than crystallite size, which ranged from 16.5 to 44.65 ㎚. The general behavior of M-H loop shapes and parameters showed superparamagnetic one. The saturation magnetization had a maximum value at Ni<SUP>2+</SUP>/Fe<SUP>3+</SUP> molar ratio equal to 0.186. The FMR signals showed, generally, broad linewidths, where the maximum width and minimum resonance field were for the sample of the lowest crystalline size. Furthermore, FMR resonance field shows linear dependence on crystalline size. The fitting relation was estimated to express this linear dependency on the base of behavior coincidence between particle size and the inverse of saturation magnetization. The given interpretations to understand the intercept and the slope meanings of the fitted relation were based on Larmor equation, and inhomogeneous in the anisotropy constant.
목차
1. Introduction
2. Experimental Part
3. Results and Discussions
4. Conclusions
References
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