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Magnetic and Crystalline Microstructures of the Sr--La--Co M-type Ferrites by Magnetic Force Microscopy |
| FANG Yi-Kun1;DING Bo-Ming2;PANG Zhi-Yong3;WANG Bao-Yan2;BAO Da-Xin2;HAN Sheng-Hao3;HAN Bao-Shan1 |
| 1State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Central Research Institute, Hengdian Group DMEGC Magnetics Stock CO. LTD., Dongyang 322118
3School of Physics and Microelectronics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100 |
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| Cite this article: |
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FANG Yi-Kun, DING Bo-Ming, PANG Zhi-Yong et al 2005 Chin. Phys. Lett. 22 942-945 |
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Abstract With proper erosion of sample surface and making a grid of crystal boundaries, the magnetic and crystalline microstructures of Sr--La--Co M-type ferrites of nominal composition of La0.2Sr08Fe11.8Co0.2O19 (at.%) have been investigated by using magnetic force microscopy. By calculating average diameter and thickness, and average alignment degree of the grains of the ferrites, recognizing their domain patterns and calculating the proportion of grains with single domain or multi-domains, the Sr--La--Co M-type ferrites with high magnetic performance have been characterized at microcrystalline and micromagnetic level. In addition, we has interpreted why the grains always present plate-like domains.
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| Keywords:
75.50.Gg
75.50.Ww
75.60.Ch
07.79.Pk
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Published: 01 April 2005
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