Exchange-coupling interaction, effective anisotropy and magnetic property of nano-magnetic materials  

作　　者：SUN Yan GAO Ruwei HAN Baiping LIU Min HAN Guangbing FENG Weicun 

机构地区：[1]School of Physics and Microelectronics, Shandong University, Jinan 250100, China

出　　处：《Progress in Natural Science:Materials International》2007年第2期131-137,共7页自然科学进展·国际材料（英文版）

基　　金：Supported by National Natural Science Foundation of China (Grant Nos. 50371046 and 50671055) ; the Research Fund for Doctoral Programme of High Education of China (Grant No. 20040422012)

摘　　要：The theories and models of exchange-coupling interaction between grains in nanocrystaUine magnetic materials are introduced here. Their insufficiencies and distinctions from the experimental results are pointed out, and some revisions are made. The effects of the phase component ratio, the grain size and on the effective anisotropy and mngnetic properties in the nanocomposite permanent materials and the improved models are discussed in detail.在在 nanocrystalline 的谷物之间的联合交换的相互作用的理论和模型磁性的材料这里被介绍。他们的不足和区别 frcrn 试验性的结果被削尖 out' 和一些修订被做。阶段部件 ratio' 的效果在 nanocomposite peimanent 材料和改进模型的有效 anistropy 和磁性上的谷物尺寸和 microstnjcture 详细被讨论。

关 键 词：nano-magneUc materials exchange-coupling interaction MICROSTRUCTURE effective anisotropy magnetic property 

分 类 号：TB3[一般工业技术—材料科学与工程]