Exchange-Coupling Interaction in Zero- and One-Dimensional Sm2Co17/FeCo Core–Shell Nanomagnets

2019 ◽  
Vol 11 (29) ◽  
pp. 26222-26227 ◽  
Author(s):  
Jimin Lee ◽  
Jiwon Kim ◽  
Danbi Kim ◽  
Gyutae Lee ◽  
Yeong-Been Oh ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Core Shell ◽  
Coupling Interaction ◽  
One Dimensional ◽  
Exchange Coupling Interaction

Effect of exchange-coupling interaction on anisotropy of grain in nanoscaled magnets

2007 ◽  
Vol 141 (3) ◽  
pp. 156-159 ◽  
Author(s):  
Yan Sun ◽  
Ru-wei Gao ◽  
Guang-bing Han ◽  
Min Liu ◽  
Bai-ping Han
Keyword(s):  
Exchange Coupling ◽  
Coupling Interaction ◽  
Exchange Coupling Interaction

Size-Dependence of Effective Anisotropy and Coercivity in Nanocomposite Permanent Magnetic Materials

2011 ◽  
Vol 217-218 ◽  
pp. 1689-1692
Author(s):  
Jia Jun Guo ◽  
Zhong Wei Wang ◽  
Jian Zhang ◽  
Hong Wei Li ◽  
Xu Zhao ◽  
...  
Keyword(s):  
Grain Size ◽  
Physical Model ◽  
Magnetic Materials ◽  
Exchange Coupling ◽  
Size Dependence ◽  
Strong Dependence ◽  
Statistical Average ◽  
Effective Anisotropy ◽  
Coupling Interaction ◽  
Exchange Coupling Interaction

Take into account different degree of exchange-coupling interaction between soft and hard grains, the effective anisotropy and coercivity in nanocomposite permanent magnetic materials has been investigated by adopting a statistical average physical model. The calculated results show a strong dependence of effective anisotropy and coercivity on the grain size in these materials. Using this model, the serious deterioration of coercivity in experiments especially when the grain size is less then 15nm could be explained in terms of the dramatic drop of the effective anisotropy in nanocomposites.

Hexaferrite/α-iron composite nanowires: Microstructure, exchange-coupling interaction and microwave absorption

2015 ◽  
Vol 621 ◽  
pp. 146-153 ◽  
Author(s):  
Xiangqian Shen ◽  
Fuzhan Song ◽  
Xinchun Yang ◽  
Zhou Wang ◽  
Maoxiang Jing ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Exchange Coupling ◽  
Coupling Interaction ◽  
Exchange Coupling Interaction
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