Abstract
A broad peak above the Curie temperature of lead iron niobate Pb(Fe1/2Nb1/2)O3 may be related to interfaces at the grain boundary. The origin of the anomalous second peak is not clear. The Sr-substituted lead iron niobate Pb1-x Srx (Fe1/2Nb1/2)O3 ceramics were prepared for the purpose of investigating this anomaly. The dielectric anomaly and pyroelectric current in this system at around 200° C may be explained by the space-charge polarization in the interfaces of the grain boundary due to ionic valence changes from Fe3+ to Fe2+ in the B-site of the perovskite structure.
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.
