Abstract
Films of (Ba,Sr)TiO3 have been deposited with a quality allowing a ferroelectric Curie–Weiss behavior to be seen and a study of the influence of electrode material and interfaces in a capacitor. The measured value of the real part of the dielectric permittivity, ε′, of a 700 nm thick Ba0.25Sr0.75TiO3 layer decreased three times at temperatures around the Curie point, when one of the two SrRuO3 electrodes (the top one) was replaced with a silver one. This may be interpreted as if there were a series capacitance, Cs, at the ferroelectric-to-metal electrode. From the decreased ε′, Cs=1.2 μF/cm2 was estimated for the Ag/Ba0.25Sr0.75TiO3 interface, corresponding to a characteristic length of about 2.6 Å for the interface layer.
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.
