Title

Performance of thin film ferroelectrics with dopant-ion charges

Document Type

Article

Publication Date

2008

Publication Source

Integrated Ferroelectrics: An International Journal

Abstract

This paper studied the effect of dopant-ion charges on the performance of thin film ferroelectrics. Field distributions and capacitance of ferroelectric thin films with different dopant-ion charge densities are analyzed. The non-linearity of the electric field inside the thin film increases with the dopant-ion charge density and decreases with the linear permittivity of the ferroelectric thin film. Once the applied voltage is strong enough, the field distribution will become linear. The FE thin film peak capacitance reduces with the dopant-ion charge density and the total area under the C-V curve between two large voltages with opposite signs is fixed.

Inclusive pages

69-83

ISBN/ISSN

1058-4587

Publisher

Taylor & Francis Group

Volume

97

Issue

1

Peer Reviewed

yes

Keywords

Ferroelectrics, dopant-ion charges, linear polarization, switching polarization, electric-field distribution in ferroelectrics