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Abstracts
Dielectric dispersion in ferroelectric hydrogen bonded glicyne phosphite crystal was investigated in the frequency range 100 Hz - 27 GHz. Dielectric relaxation of Debye type observed in the paraelectric phase shows a critical slowing down of the polarization fluctuations. The relaxation frequency decreases with temperature according to f_{s} = 0.305(T-T_{0}) GHz in the paraelectric phase. The activation energy for flipping dipole motion ΔU = 2.07kT_{c} confirms order-disorder character of the phase transition. In the ferroelectric phase pronounced low frequency (100 Hz - 1 MHz) dispersion related to domain contribution to permittivity was found.
Keywords
Journal
Year
Volume
Issue
Pages
1191-1196
Physical description
Dates
published
1997-12
received
1997-04-24
(unknown)
1997-08-25
Contributors
author
- Institute of Experimental Physics, University of Wrocław, Pl. M. Borna 9, 50-204 Wrocław, Poland
author
- Institute of Experimental Physics, University of Wrocław, Pl. M. Borna 9, 50-204 Wrocław, Poland
author
- Faculty of Physics, Vilnius University, Sauletekio Aleja 9, 2054 Vilnius, Lithuania
author
- Faculty of Physics, Vilnius University, Sauletekio Aleja 9, 2054 Vilnius, Lithuania
author
- Faculty of Physics, Vilnius University, Sauletekio Aleja 9, 2054 Vilnius, Lithuania
author
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław 2, Poland
References
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Publication order reference
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bwmeta1.element.bwnjournal-article-appv92z610kz