Terahertz-infrared electrodynamics of lead zirconate-titanate films on a platinum sublayerстатья
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Дата последнего поиска статьи во внешних источниках: 28 сентября 2016 г.
Аннотация:The transmission-reflection spectra of a bilayer structure formed on a substrate of single-crystal silicon with transition layers (TiO2-SiO2), which consists of a PbZr0.52Ti0.48O3 ferroelectric thin film and a polycrystalline platinum layer, have been measured in the frequency range of 10-6000 cm(-1). The frequency dependences of the real E > aEuro(2)(nu) and imaginary E > aEuro(3)(nu) parts of the permittivity have been simulated by the method of the dispersion analysis, and the parameters of lattice excitations in the lead zirconate-titanate film have been determined. It has been shown that the low-frequency terahertz dynamics exerts the decisive influence on the formation of the dielectric response over the entire studied frequency range.