Comparative Study of Voltage Amplification in Cylindrical FE-FE-DE and FE-DE Heterostructures
Year: 2025
Type: article
Abstract: This work examines a cylindrical FE-DE heterostructure and compares its performance with that of a cylindrical FE-FE-DE heterostructure. It aims to maximize voltage amplification, increase capacitance, and attain a constant negative capacitance. First, the existence of negative capacitance is shown by analyzing isolated cylindrical ferroelectric capacitors. A cylindrical dielectric capacitor and a cylindrical ferroelectric capacitor are integrated in series to stabilize negative capacitance. Our results indicate that the capacitance of the FE-FE-DE stack, consisting of Si:HfO2 and Zr:HfO2, closely aligns with the dielectric capacitance. Consequently, enhanced performance is anticipated in comparison with the FE-DE arrangement. Additionally, the dynamic response of two distinct configurations was analyzed, yielding a comprehensive understanding of these heterostructures’ behavior.
Source: Electronic Materials
Authors: Pratheeksha Suresh, Bhaskar Awadhiya, Vikash Mishra, Pramod Martha, Sampath Kumar, Yashwanth Nanjappa
Institution: Manipal Academy of Higher Education
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,207
OpenAlex ID: W4416913146