Preparation and Dielectric Properties of Cr Doped Multiferroic BiFeO₃

Abstract:

A series of Cr doped multiferroic BiFeO₃ (BFO) with the composition of BiFe_1-xCr_xO₃ have been prepared using hydrothermal method, in which x varies as 0, 0.05, 0.1, 0.2, 0.3, 0.4 and 0.5. The synthesis temperature is carried out as low as 230 °C under hydrothermal conditions. With the increase of the content of Cr, the second phase is gradually increased. When the value of Cr is 0.5, the main peak (110) and (104) of BFO tends to disappear, in which the structure of BFO is changed. The permittivity of as-prepared samples decreases with the increase of Cr content and excellent frequency stability is exhibited. Better grain structure can be obtained for samples sintered at 830 °C

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 1240-1243
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.1240
• Online since: June 2012
• Authors: Xi Wei Qi, Xiao Yan Zhang, Jian Quan Qi, He Ji Xu, Hai Feng Wang
• Keywords: Cr Dopant, Dielectric Property, Hydrothermal, Multiferroic

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