Abstract
The YMnO3 thin films were prepared on platinized silicon substrates by chemical solution deposition. The films were crystallized by annealing at 850°C for 1 hour under various atmospheres, i.e., O2, air, Ar, and vacuum. Effects of annealing atmospheres on the crystallization behavior and electrical properties were investigated. Crystallization behavior of an YMnO3 thin film critically depended on the oxygen partial pressure of the annealing atmosphere. The YMnO3 thin film annealed in Ar showed a superior crystallinity and a strongest c-axis preferred orientation. Leakage current density decreased with lowering oxygen partial pressure of the annealing atmosphere. The C-V and P-E ferroelectric hysteresis were found only in the YMnO3 thin film annealed under Ar atmosphere. Leakage current density, dielectric constant (ϵt), remanent polarization(Pr), and coercive field(Ec) of the film annealed in Ar were 1.7 × 10−8A/cm2 at 1 volt, 25, 1.08μC/cm2, and 100 kV/cm, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.