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
Magnetic and Crystalline Microstructures of the Sr--La--Co M-type Ferrites by Magnetic Force Microscopy
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
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.
FANG Yi-Kun;DING Bo-Ming;PANG Zhi-Yong;WANG Bao-Yan;BAO Da-Xin;HAN Sheng-Hao;HAN Bao-Shan. Magnetic and Crystalline Microstructures of the Sr--La--Co M-type Ferrites by Magnetic Force Microscopy[J]. 中国物理快报, 2005, 22(4): 942-945.
FANG Yi-Kun, DING Bo-Ming, PANG Zhi-Yong, WANG Bao-Yan, BAO Da-Xin, HAN Sheng-Hao, HAN Bao-Shan. Magnetic and Crystalline Microstructures of the Sr--La--Co M-type Ferrites by Magnetic Force Microscopy. Chin. Phys. Lett., 2005, 22(4): 942-945.
2005, Vol. 22 
