Effects of grain size distribution on remanence and coercivity of Pr2Fe14B nanocrystalline magnet
He Shu-Li (贺淑莉)ab, Zhang Hong-Wei (张宏伟)a, Rong Chuan-Bing (荣传兵)a, Chen Ren-Jie (陈仁杰)a, Shen Bao-Gen (沈保根)a
a State Key Laboratory of Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Science, Beijing 100080, China; b Department of Physics, Capital Normal University, Beijing 100037, China
Abstract The demagnetization curves of Pr2Fe14B nanocrystalline magnets are calculated using micromagnetic finite-element method. The samples with three different distributions of grain size are simulated. The remanence enhancement does not depend on grain size distribution but on the mean diameter of grains. The influence of grain size distribution on coercivity is affected by the strength of intergrain exchange coupling.
Received: 30 November 2004
Revised: 19 January 2005
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10274102)
Cite this article:
He Shu-Li (贺淑莉), Zhang Hong-Wei (张宏伟), Rong Chuan-Bing (荣传兵), Chen Ren-Jie (陈仁杰), Shen Bao-Gen (沈保根) Effects of grain size distribution on remanence and coercivity of Pr2Fe14B nanocrystalline magnet 2005 Chinese Physics 14 1055
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