| 磁性超微粒的线度效应和分形特性 |
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| 引用本文： | 孙强,王前,穆峰.磁性超微粒的线度效应和分形特性[J].西南师范大学学报(自然科学版),1992(4). |
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| 作者姓名： | 孙强 王前 穆峰 |
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| 作者单位： | 西南师范大学物理系 重庆630715
(孙强，王前)，西南师范大学物理系 重庆630715(穆峰) |
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| 摘 要： | 讨论了磁性超微粒磁结构的线度效应(单畴结构,超顺磁驰豫)、磁特性的线度效应(饱和磁化强度、矫顽力、磁化率及磁转变温度)、磁聚集的分形特性以及线度效应对粒子分形聚集的影响,并介绍了目前有关的实验研究和理论工作进展.
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| 关 键 词： | 超微粒 线度效应 分形 |
THE SIZE EFFECTS AND FRACTAL PROPERTIES OF MAGNETIC ULTRAFINE PARTICLES |
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| Sun Qiang Wang Qian Mu Feng.THE SIZE EFFECTS AND FRACTAL PROPERTIES OF MAGNETIC ULTRAFINE PARTICLES[J].Journal of Southwest China Normal University(Natural Science),1992(4). |
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| Authors: | Sun Qiang Wang Qian Mu Feng |
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| Abstract: | The following problems were diswssed (1) The size effects in the magnetic structure (single-domain structure, superparamagnetic relaxation). (2)The size effcts in the magnetic properties (saturation magnetization, magnetic coercivity, susceptibility and magnetic transition temperatures); (3)The fractal properties and the size effects in the magnetic aggregation. The current status in experimental and theoretical studies for these were alsc briefly reviewed. |
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| Keywords: | ultrafine particle size effect fractal |
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