Abstract
Epitaxial biferroic relaxors of formula Pb[(Zr0.53Ti0.47)0.4(Fe0.67W0.33)0.6]O3 (PZTFW) were grown on (La0.18Sr0.82)(Al0.59Ta0.41)O3 (LSAT) by pulsed laser deposition techniques. Magnetic studies were done on as-grown PZTFW/LSAT samples; whereas all electrical characterizations were carried out on conducting lanthanum strontium cobalt oxide ((La,Sr)CoO3)- coated LSAT. X-ray diffraction patterns verify the epitaxial growth of the film. A high dielectric constant, low dielectric loss and a broad relaxor ferroelectric phase transition near room temperature were observed, however, a frequency- dependent, high-temperature; Maxwell-Wagner space charge-based phase transition was also noticed. A large and irreversible magnetization with a sharp cusp in zero-field-cooled (ZFC) magnetization with low ZFC magnetic field implies Heisenberg spin-glass behavior. Slim hysteresis loops below the freezing temperature Tf were observed which become broader at low temperature; these are typical of relaxor ferroelectrics based upon compositional disorder. Ac conductivity suggests almost frequency dependent conductivity below ferroelectric phase transition where as significant contribution of mobile charge carriers at elevated temperature.
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.
