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Synthesis and Exchange Bias Effect of Fe-doped CuO Nanoparticles
Yin Shiyan #,Yuan Songliu *,Tian Zhaoming,Liu Li,Wang Chuanhui,Zheng Xianfeng,Duan Hanning,Huo Shaoxin
School of Physics, Huazhong University of Science and Technology
*Correspondence author
#Submitted by
Subject:
Funding: 教育部博士点基金,国家973,教育部博士点基金（No.No.20060487011,No.2006CB921606,No.20090142120069）
Opened online: 8 January 2010
Accepted by: none
Citation: Yin Shiyan,Yuan Songliu,Tian Zhaoming.Synthesis and Exchange Bias Effect of Fe-doped CuO Nanoparticles[OL]. [ 8 January 2010] http://en.paper.edu.cn/en_releasepaper/content/38660
 
 
Polycrystalline Cu1-xFexO (x=0.15) nanoparticles were synthesized using a coprecipitation method. Microstructural studies indicate that two phases are coexistent in the composites. Exchange bias field (HEB) accompanying vertical magnetization shift is observed in the system, after the sample is cooled from 300 to 10K under 10 kOe magnetic field. Consecutive hysteresis loops show that the HEB decreases with magnetic field cycling, which is referred to as the training effect. Furthermore, the exchange bias field and vertical magnetization shift decrease with increasing temperature. The exchange bias effect at low temperature is ascribed to the magnetic exchange coupling between ferromagnetic phase and the spin-glass-like phase at the interfaces.
Keywords:Nanoparticles;Exchange bias;Training effect
 
 
 

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