Anisotropic dielectric response of lead zirconate crystals in the terahertz and infrared range at low temperature

Tetyana Ostapchuk,C Kadlec,Petr Kuzel,Jan Kroupa,V Zelezny,J Hlinka,J Petzelt,Jan Dec

PHASE TRANSITIONS（2014）

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摘要

Polarized terahertz transmittance and infrared reflectivity measurements were performed on selected lead zirconate crystals at T = 10K. The fit of the spectra enabled us to obtain all three principal components of its anisotropic dielectric function and the corresponding parameters of the polar phonon modes.

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关键词

infrared and terahertz spectroscopy,lead zirconate,antiferroelectrics,complex dielectric permittivity,phonons

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