Abstract
Artificial superlattices of SrTiO 3 and BaZrO 3 were grown epitaxially with different periodicities on SrRuO 3 coated (001) SrTiO 3 substrates by pulsed excimer laser ablation. Superlattices were structurally characterized by X-Ray θ – 2 θ diffraction data. Electrical characterization was done in metal–insulation–metal configuration. Capacitance–voltage measurements showed limited amount of tunability. The DC field induced tunability has been observed to be sensitive to the periodicity of the superlattices, hence the effective strain present in the layers. Hysteretic behaviour in capacitance–voltage ( C – V ) and polarization versus electric field ( P – E ) results from the superlattices also indicate the sensitivity of the interfaces. Interfacial strain is supposed to be the most probable cause for such a behaviour which is also manifested in the variation of dielectric constant with individual layer thicknesses.
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.
