Jpn. J. Appl. Phys. 27 (1988) pp. L311-L313 |Next Article| |Table of Contents|
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Letter
1/f Fluctuations in the Dielectric Response of Triglycine Sulfate
Toshimitsu Musha,
Akira Nakajima and
Hideo Akabane
Department of Applied Electronics, Tokyo Institute of Technology
(Received December 22, 1987; accepted for publication February 18, 1988)
1/f fluctuations have been observed in the imaginary part of the complex dielectric constant of ferroelectric triglycine sulfate crystals near the Curie temperature Tc. The observed 1/f power spectral density Sεi(f) of the imaginary dielectric constant, when normalized to the square of the real part of the dielectric constant εr, is given by S εi(f)/εr2=3.2×10-15/f(ΔT) where ΔT=T-47.73(°C) in the paraelectric phase and ΔT=47.82-T(°C) in the ferroelectric phase.
KEYWORDS:
1/f fluctuations, ferroelectricity, critical phenomena, dielectric response
URL:
http://jjap.ipap.jp/link?JJAP/27/L311/
DOI: 10.1143/JJAP.27.L311
- These topics have been discussed in the International Symposia on 1 /f Noise. The proceedings of the latest symposium were published by North-Holland as Proc. on Noise in Physical Systems and 1/f Noise, 1985, ed. by A. D'Amico and P. Mazzetti, North-Holland, 1986.
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