Abstract
Some physical properties of tetragonal and hexagonal barium titanate films are reported. The as-grown films were amorphous, and annealing at 700 degrees C resulted in crystallization of the films. The amorphous films deposited from the hexagonal phase target (h-a:BaTiO/sub 3/) had higher refractive index values than those sputtered from a tetragonal phase target (t-a:BaTiO/sub 3/). The h-a:BaTiO/sub 3/ films had lower bandgap values than the t-a:BaTiO/sub 3/ films. Crystallization altered the bandgap values in the case of tetragonal films, whereas no change was observed in hexagonal films. The measured DC conductivity showed a slight decrease on crystallization in both the phases, and the tetragonal films had a ferroelectric-to-paraelectric transition, while the hexagonal films did not show any indication of phase transition in the measured temperature region. >
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.
