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Optical activity of Sn2P2S6 crystals at the phase transition
1Vlokh R., 1Mys O., 2Grabar A., 2Vysochanskii Yu.

1Institute of Physical Optics, 23 Dragomanov St., 79005 Lviv, Ukraine
2Istitute for Solid State Physics and Chemistry, Uzhgorod National University, 54 Voloshyn St., 88000 Uzhgorod, Ukraine

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Temperature dependence of optical activity in Sn2P2S6 crystals has been studied in the course of proper ferroelectric phase transition. The electrogyration parameters of these crystals have been calculated. We have shown that the crystals under study might be referred to at least as one of the best electrogyration materials.

Keywords: Sn2P2S6 crystals, optical activity, electrogyration

PACS: 78.20.Ek, 42.70.Jk, 78.20.Hp, 77.80.Bh
Ukr. J. Phys. Opt. 9 1-9 
doi: 10.3116/16091833/9/1/1/2008
Received: 24.11.2007

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