Dielectric Dispersion in Ferroelectric Glycine Phosphite

• Authors: R. Tchukvinskyi , Z. Czapla , R. Sobiestianskas , A. Brilingas , J. Grigas , J. Baran
• Languages of publication: EN

Abstracts

EN

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

EN

77.80.Bh  

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 6
• Pages: 1191-1196

Dates

published

1997-12

received

1997-04-24

(unknown)

1997-08-25

Identifiers

DOI

10.12693/APhysPolA.92.1191