期刊
CHINESE PHYSICS B
卷 24, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/24/12/127803
关键词
SnO2 nanoparticles; dielectric property; magnetic properties of nanoparticles; ferromagnetism at room temperature
资金
- National Basic Research Program of China [2015CB921004, 2012CB821404, 2011CBA00103]
- National Natural Science Foundation of China [11374261, 11204059]
Polycrystalline samples of (Zn, Co) co-doped SnO2 nanoparticles were prepared using a co-precipitation method. The influence of (Zn, Co) co-doping on electrical, dielectric, and magnetic properties was studied. All of the (Zn, Co) co-doped SnO2 powder samples have the same tetragonal structure of SnO2. A decrease in the dielectric constant was observed with the increase of Co doping concentration. It was found that the dielectric constant and dielectric loss values decrease, while AC electrical conductivity increases with doping concentration and frequency. Magnetization measurements revealed that the Co doping SnO2 samples exhibits room temperature ferromagnetism. Our results illustrate that (Zn, Co) co-doped SnO2 nanoparticles have an excellent dielectric, magnetic properties, and high electrical conductivity than those reported previously, indicating that these (Zn, Co) co-doped SnO2 materials can be used in the field of the ultrahigh dielectric material, high frequency device, and spintronics.
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