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Effect of grain size on ferroelectric films using effective medium theory
Author(s)
Date Issued
January 1, 2014
Type
Article
Abstract
Based on effective medium theory, the temperature dependence of effective dielectric permittivity, εe(T), on the core radius (a) and thickness (t) of nonferroelectric dead layer (DL) on the surface of inhomogeneous grains of ferroelectric film made up of cylindrical ferroelectric grains was theoretically investigated. It was found that εe(T) increases with increasing core radius and decreases with increasing DL thickness. In this study, an equation expressing the relationship among εe, a and t was derived. This equation is useful for preparing ferroelectric film to desired properties.
Citation
Chiang Mai University Journal of Natural Sciences, 13(2), 617-623, 2014