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Switching Process in Ferroelectric Triglycine Selenate

Sangunni, KS and Ravi, R and Bhat, HL and Narayanan, PS (1986) Switching Process in Ferroelectric Triglycine Selenate. In: Japanese Journal of Applied Physics, 25 (3). 380 -382.

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Triglycine selenate (TGSe) is isomorphous with Triglycine sulphate and is ferroelectric below 22°C. It is interesting to study the switching process in TGSe in the ferro-state with a view to comparing the results with TSG. The switching process was studied by applying electrical square pulses to produce fields up to 5 kV/cm on the sample, and measuring the parameters characterizing the transient current flowing in the sample, according to the Merz method. The temperature range in which the process was studied was 15°C to -20°C. The results were analysed by applying the Pulvari-Kuebler theory and the parameters α the activation field and µ the mobility of the domains were evaluated. It is found that µ varies with temperature in TGSe in a manner similar to TGS. µ is lesser for TGSe than for TGS for the same shift of temperature from Tc. The switching behaviour of γ-irradiated TGSe is qualitatively similar to that of unirradiated crystal eventhougth the process gets slowed down as a result of irradiation.

Item Type: Journal Article
Publication: Japanese Journal of Applied Physics
Publisher: Institute of Pure and Applied Physics
Additional Information: Copyright of this article belongs to Institute of Pure and Applied Physics.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 05 Feb 2010 06:28
Last Modified: 19 Sep 2010 05:41
URI: http://eprints.iisc.ac.in/id/eprint/22344

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