Oscillatory Dynamical Switching System of Bulk Ferroelectrics | Science Publications

American Journal of Applied Sciences

S. Daud¹  Junaidah Osman¹  M. N.A. Halif¹ 

关键词: Phase Transitions;    Coercive Field;    Polarization Switching;   

DOI  :  10.3844/ajassp.2005.1073.1077

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

This study gives a detailed account of calculation of the bulk ferroelectric (FE) oscillatory dynamical system switching to first and second-order phase transition, respectively. All the formalism is delineated in the framework of Landau free-energy expansion and Landau-Khalatnikov (LK) equation of motion where the effect of external energy may affray FE atoms similar to the spring damped oscillatory system. Here we scrutinized the switching properties from free-energy expansion and hysteresis loop. The polarization and current switching appropriate to the estimated complete switching time, changing of temperature, electric field and damping are scrutinized and discussed.

【 授权许可】

Unknown