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Acoustic wave velocities and elastic properties of Sn2P2(Se0.28S0.72)6 solid solutions |
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| Authors: | I Martynyuk-Lototska O Mys B Zapeka A Grabar |
| Institution: | 1. Institute of Physical Optics , 23 Dragomanov St., 79005 Lviv, Ukraine;2. Institute for Solid State Physics and Chemistry, Uzhgorod National University , 54 Voloshyn St, 88000 Uzhgorod, Ukraine |
| Abstract: | An experimental study and analysis is presented of the acoustic properties of Sn2P2(Se0.28S0.72)6 ferroelectric crystals. Complete matrices of elastic stiffness and compliance as well as characteristic acoustic slowness surfaces have been obtained. The directions of propagation and polarisation of the slowest acoustic waves were determined. It was found that the elastic properties and the acoustic wave velocities for Sn2P2(Se0.28S0.72)6 and Sn2P2S6 crystals are almost the same at room temperature. |
| Keywords: | ferroelectric acoustic wave velocity elastic properties |