Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics
Single-phase multiferroic BiFeO3 ceramics were fabricated using pure precipitation-prepared BiFeO3 powder. Dielectric response of BiFeO3 ceramics was investigated over a wide range of temperature and frequency. Our results reveal that the BiFeO3 ceramic sintered at 700 °C exhibited high dielectric p...
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th-cmuir.6653943832-59322014-08-30T03:23:38Z Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics Hunpratub S. Thongbai P. Yamwong T. Yimnirun R. Maensiri S. Single-phase multiferroic BiFeO3 ceramics were fabricated using pure precipitation-prepared BiFeO3 powder. Dielectric response of BiFeO3 ceramics was investigated over a wide range of temperature and frequency. Our results reveal that the BiFeO3 ceramic sintered at 700 °C exhibited high dielectric permittivity, and three dielectric relaxations were observed. A Debye-type dielectric relaxation at low temperatures (-50 to 20 °C) is attributed to the carrier hopping process between Fe2+ and Fe3+. The other two dielectric relaxations at the temperature ranges 30-130 °C and 140-200 °C could be due to the grain boundary effect and the defect ordering and/or the conductivity, respectively. © 2009 American Institute of Physics. 2014-08-30T03:23:38Z 2014-08-30T03:23:38Z 2009 Article 00036951 10.1063/1.3078825 APPLA http://www.scopus.com/inward/record.url?eid=2-s2.0-60349095912&partnerID=40&md5=f3783621f57b2b921bc160210701a419 http://cmuir.cmu.ac.th/handle/6653943832/5932 English |
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Single-phase multiferroic BiFeO3 ceramics were fabricated using pure precipitation-prepared BiFeO3 powder. Dielectric response of BiFeO3 ceramics was investigated over a wide range of temperature and frequency. Our results reveal that the BiFeO3 ceramic sintered at 700 °C exhibited high dielectric permittivity, and three dielectric relaxations were observed. A Debye-type dielectric relaxation at low temperatures (-50 to 20 °C) is attributed to the carrier hopping process between Fe2+ and Fe3+. The other two dielectric relaxations at the temperature ranges 30-130 °C and 140-200 °C could be due to the grain boundary effect and the defect ordering and/or the conductivity, respectively. © 2009 American Institute of Physics. |
| format |
Article |
| author |
Hunpratub S. Thongbai P. Yamwong T. Yimnirun R. Maensiri S. |
| spellingShingle |
Hunpratub S. Thongbai P. Yamwong T. Yimnirun R. Maensiri S. Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics |
| author_facet |
Hunpratub S. Thongbai P. Yamwong T. Yimnirun R. Maensiri S. |
| author_sort |
Hunpratub S. |
| title |
Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics |
| title_short |
Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics |
| title_full |
Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics |
| title_fullStr |
Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics |
| title_full_unstemmed |
Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics |
| title_sort |
dielectric relaxations and dielectric response in multiferroic bifeo3 ceramics |
| publishDate |
2014 |
| url |
http://www.scopus.com/inward/record.url?eid=2-s2.0-60349095912&partnerID=40&md5=f3783621f57b2b921bc160210701a419 http://cmuir.cmu.ac.th/handle/6653943832/5932 |
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1681420518724468736 |