Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/59953
Title: Dielectric relaxations and dielectric response in multiferroic BiFeO3 ceramics
Authors: Sitchai Hunpratub
Prasit Thongbai
Teerapon Yamwong
Rattikorn Yimnirun
Santi Maensiri
Keywords: Physics and Astronomy
Issue Date: 23-Feb-2009
Abstract: 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.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=60349095912&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/59953
ISSN: 00036951
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.


Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.