Structural, Raman, Dielectric, Magnetic and Magnetoelectric Properties of Ba and Mn Doped BiFeO3 Nanoparticles

被引：0
作者：
Chauhan, Sunil [1 ]
Kumar, Manoj [1 ]
Chhoker, Sandeep [1 ]
Katyal, S. C. [1 ]
机构：
[1] Jaypee Inst Informat Technol, Dept Phys & Mat Sci & Engn, Noida 201307, Uttar Pradesh, India
来源：
2013 INTERNATIONAL CONFERENCE ON ADVANCED NANOMATERIALS AND EMERGING ENGINEERING TECHNOLOGIES (ICANMEET) | 2013年
关键词：
Multiferroics; Sol-gel; Nanoparticles; Raman spectroscopy; Dielectric properties; Magnetic Properties;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Ba and Mn doped BiFeO3 nanoparticles were synthesized by sol-gel method. X-ray diffraction and Raman spectroscopy results showed the presence of distorted rhombohedral structure for Bi0.85Ba0.15FeO3 nanoparticles and the substitution induced phase transition (rhombohedral to orthorhombic) phase for Bi0.85Ba0.15FeO3 nanoparticles. FESEM images of both the samples revealed grain size in the range from 50 to 100 nm. Magnetic measurement showed room temperature ferromagnetic behavior, which may be attributed to the antiferromagnetic core and the ferromagnetic surface of the nanoparticles, together with the structural distortion caused by Ba and Mn substitution in BiFeO3 samples. The magnetoelectric coupling was evidenced by the observation of the dielectric anomaly in the dielectric constant near antiferromagnetic Neel temperature in both the samples.
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页码：275 / 278
页数：4
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