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Naftaly, M, Cain, M, Lepadatu, Serban 
ORCID: 0000-0001-6221-9727, Buchacher, T and Allam, J
(2016)
Dielectric constants of bulk ferroelectric PZTmeasured by terahertz time-domain spectroscopy.
Advances in Applied Ceramics: Structural, Functional and Bioceramics Journal - Advances in Psychiatric Treatment
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pp. 260-263.
ISSN 1743-6753
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Official URL: http://doi.org/10.1080/17436753.2015.1130199
Abstract
The complex permittivity of bulk ceramic ferroelectric of nominal composition PbZr0.4Ti0.6O3 was measured in the range 0.2–2 THz using transmission time-domain spectroscopy. The results indicate strong absorption and dispersion in this frequency range as often seen in highly disordered and polar materials. The results are compared to equivalent thin film data in the literature, and significant differences in the real and imaginary permittivity suggest that substrate clamping and degree of polarisation of the ferroelectric thin film materials affect dielectric properties even at these high frequencies.
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