Simulación Monte Carlo del comportamiento ferroeléctrico de películas de PZT empleando un Hamiltoniano DIFFOUR dependiente de la presión

Main Article Content

E Restrepo-Parra
H H Ortíz Álvarez
C M Bedoya-Hincapié https://orcid.org/0000-0002-9129-4205

Keywords

Monte Carlo, simulación, ferroeléctricos, DIFFOUR, PZT

Resumen

En este trabajo se estudió la respuesta de polarización y de histéresis en películas delgadas de titanato zirconato de plomo (PZT) a la variación de temperatura, presión, campo eléctrico y contenido de impurezas no ferroeléctricas, mediante simulación Monte Carlo. La simulación se basó en un Hamiltoniano DIFFOUR, que tiene en cuenta el efecto de un esfuerzo uniaxial, además de la interacción entre dipolos vecinos y el efecto de un campo eléctrico externo. Los resultados obtenidos para ciclos de histéresis y curvas de polarización se ajustan a los datos experimentales reportados para este material.

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