title   
  

Layer thickness and period as design parameters to tailor pyroelectric properties in ferroelectric superlattices

Mısırlıoğlu, Burç and Kesim, M. T. and Alpay, S. P. (2014) Layer thickness and period as design parameters to tailor pyroelectric properties in ferroelectric superlattices. Applied Physics Letters, 105 (17). ISSN 0003-6951 (Print) 1077-3118 (Online)

[img]
Preview
PDF (This is a RoMEO green journal -- author can archive publisher's version/PDF) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1519Kb

Official URL: http://dx.doi.org/10.1063/1.4900940

Abstract

We theoretically examine the pyroelectric properties of ferroelectric-paraelectric superlattices as a function of layer thickness and configuration using non-linear thermodynamics coupled with electrostatic and electromechanical interactions between layers. We specifically study PbZr0.3Ti0.7O3/SrTiO3 superlattices. The pyroelectric properties of such constructs consisting of relatively thin repeating units are shown to exceed the pyroelectric response of monolithic PbZr0.3Ti0.7O3 films. This is related to periodic internal electric fields generated due to the polarization mismatch between layers that allows tailoring of the shift in the transition temperature. Our results indicate that higher and electric field sensitive pyroresponse can be achieved from layer-by-layer engineered ferroelectric heterostructures.

Item Type:Article
Additional Information:Article Number: 172905
Subjects:Q Science > QC Physics > QC176-176.9 Solids. Solid state physics
T Technology > T Technology (General) > T174.7 Nanotechnology
Q Science > QC Physics > QC310.15 Thermodynamics
ID Code:25713
Deposited By:Burç Mısırlıoğlu
Deposited On:15 Dec 2014 11:05
Last Modified:15 Dec 2014 11:05

Repository Staff Only: item control page