Theoretical Investigation of the Influence of Surface Imperfection and Thin Film Thickness on the Critical Temperatures of Ferroelectric Transition

Autor: Driss Khatib, Ahmed Toumanari, Es‐saïd El‐frikhe
Rok vydání: 2008
Předmět:
Zdroj: Ferroelectrics. 372:16-21
ISSN: 1563-5112
0015-0193
DOI: 10.1080/00150190802381605
Popis: Thermodynamic theory (Landau-Devonshire) of ferroelectric thin films undergoing first order phase transition is applied to calculate the influence of imperfection surface layer and film thickness on the critical temperatures namely superheating tsh and supercoling tsc. The numerical results show that the effect of imperfect surface layers and film thickness are to increase the value of tsh and tsc.
Databáze: OpenAIRE