2017年
Mossbauer study of zinc-substituted strontium cobalt Z-type hexaferrite
CERAMICS INTERNATIONAL
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- 巻
- 43
- 号
- 開始ページ
- S386
- 終了ページ
- S390
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.ceramint.2017.05.264
- 出版者・発行元
- ELSEVIER SCI LTD
Polycrystalline powder samples of the zinc-substituted strontium cobalt Z-type hexaferrite: Sr3Co2-xZnxFe24O41 (x = 0, 0.5, 1.0, 1.5 and 2.0) were prepared by the polymerizable complex method. Their Mossbauer spectra were measured at room temperature with conventional constant-acceleration spectrometer. Obtained Mossbauer spectra were numerically separated into six discrete components. The relationship between Mossbauer parameters and magnetic properties has been discussed. From the values of the isomer shift, it was found that the iron ion in Sr3Co2-xZnxFe24O41 is trivalent with high spin. The value of the quadrupole splitting increased and changed the sign from negative to positive for the sample with x = 1.5. From the results mentioned above and the analysis of the complex permeability spectra, the magnetocrystalline anisotropy of Sr3Co2-xZnxFe24O41 is changed from c-plane to c-axis at Zn content between x = 1.0 and 1.5. The compositional dependence of the areas of each subspectra showed that Zn2+ ions occupy the sites with down spin at the compositional range of x = 0.0-1.0.
- リンク情報
- ID情報
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- DOI : 10.1016/j.ceramint.2017.05.264
- ISSN : 0272-8842
- eISSN : 1873-3956
- Web of Science ID : WOS:000409285800068