Magnetic and electrical properties of single-phase multiferroic BiFeO₃

Authors

• Aswini K. Pradhan, Center for Materials Research, Norfolk State UniversityFollow
• Kai Zhang, Center for Materials Research, Norfolk State University, Norfolk, Virginia
• D. Hunter, Center for Materials Research, Norfolk State University, Norfolk, Virginia
• J.B. Dadson, Center for Materials Research, Norfolk State University, Norfolk, Virginia
• G.B. Loiutts, Center for Materials Research, Norfolk State University, Norfolk, Virginia
• P. Bhattacharya, Department of Physics, University of Puerto Rico, San Juan, Puerto Rico
• R. Katiyar, Department of Physics, University of Puerto Rico, San Juan, Puerto Rico
• Jun Zhang, University of Nebraska - LincolnFollow
• David J. Sellmyer, University of Nebraska-LincolnFollow
• U.N. Roy, Department of Physics, Fisk University, Nashville, Tennessee
• Y. Cui, Department of Physics, Fisk University, Nashville, Tennessee
• A. Burger, Department of Physics, Fisk University, Nashville, Tennessee

Document Type

Article

Date of this Version

5-1-2005

Comments

Published by American Institute of Physics. J. Applied Physics 97, 093903 (2005). ©2005 American Institute of Physics. Permission to use. http://jap.aip.org/jap/.

Abstract

We have reported the structural, thermal, microscopic, magnetization, polarization, and dielectric properties of BiFeO₃ ceramics synthesized by a rapid liquid-phase sintering technique. Optimum conditions for the synthesis of single-phase BiFeO₃ ceramics were obtained. Temperature-dependent magnetization and hysteresis loops indicate antiferromagnetic behavior in BiFeO₃ at room temperature. Although saturated ferroelectric hysteresis loops were observed in single-phase BiFeO₃ ceramic synthesized at 880 °C, the reduced polarization is found to be due to the high loss and low dielectric permittivity of the ceramic, which is caused by higher leakage current.