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D. MARINEL1, H. V. ALEXANDRU1,2,* , C. P. GANEA3
- University of Bucharest, Faculty of Physics - Bucharest Magurele, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, Ro-050094, Bucharest, Romania
- National Institute of Materials Physics - Bucharest Magurele, Romania
Triglycine sulphate (TGS) is a crystal having a typical second order ferroelectric transition and the Curie point around 49 o C. It is quite easy to grow and to analyse its properties. Our TGS crystals were grown by slow solvent evaporation in paraelectric phase, around 54 o C, where no mechanical tensions due to ferroelectric domains were present. Dielectric properies of TGS crystals were continuously measured at a pace of 0.6 o C/min, starting from 65 o C, crossing down the Curie point until zero Celsius, on the frequency range 1-107 Hz. The two component of permittivity were measured and the parameters vs. temperature were estimated and analysed..
TGS dielectric properties, Conduction losses, Activation energy, Frequency dependence, Frequency coeficient, Comparing with literature conductivity data.
Submitted at: July 30, 2018
Accepted at: Nov. 29, 2018
D. MARINEL, H. V. ALEXANDRU, C. P. GANEA, Conductivity losses in ferroelectric phase of TGS, Journal of Optoelectronics and Advanced Materials Vol. 20, Iss. 11-12, pp. 676-681 (2018)
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