Abstract
The structural, multiferroic, dielectric, and magneto-dielectric (MD) properties of Aurivillius Bi7Fe2CrTi3O21 ceramic are investigated in detail. The sample shows a dominant antiferromagnetic state with the existence of weak ferromagnetic ordering. The saturation magnetization Ms and remnant polarization Pr are 2.85emu/g and 4.1μC/cm2, respectively. The results of dielectric, electrical modulus, impedance and scaling behavior indicate that the dielectric relaxation is induced by the localized hopping process of electrons. In addition, the MD property in low frequency range can be ascribed to the extrinsic effect stemming from grain boundary relaxation, whereas the MD property in high frequency region can be attributed to the intrinsic effect arising from grain relaxation. More importantly, a relatively large intrinsic magneto-dielectric constant of −1.27% can be achieved at 1MHz and 300K. These results imply that Cr-doped Aurivillius compounds may be the potential candidates for MD applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
