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Influence of the sample orientation in Sn2P2S6 crystals on the hydrostatic piezoelectric coefficients

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Central European Journal of Physics

Abstract

The influence of the sample orientation on the effective value of the hydrostatic piezoelectric coefficients d (i) h of Sn2P2S6 crystals has been studied. The hydrostatic piezoelectric coefficients d (1) h and d′ (3) h , were measured, d (1) h =(244±3) pC/N and d′ (3) h =(92±1) pC/N. The hydrostatic piezoelectric coefficient d (3) h for orthogonal axis system was calculated to be d (3) h =(87±2) pC/N. The, optimal orientation of the sample has been found as (Xy l)−20°-cut. Maximal value of the effective hydrostatic piezoelectric coefficient d (1) h equals 260 pC/N. Double rotated samples were also studied. The orientation of the samples insensitive to the pressure has been found. The theoretical mean value of hydrostatic piezoelectric coefficient (d h ) mean corresponding to randomly oriented Sn2P2S6 grains in a poled composite has been calculated to be (d h ) mean =136 pC/N.

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Authors and Affiliations

  1. Department of Physics, Technical University of Liberec, Hálkova 6, 461 17, Liberec 1, Czech Republic

    Stanislav Panoŝ & Dagmar Panoŝová

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  1. Stanislav Panoŝ
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  2. Dagmar Panoŝová
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Panoŝ, S., Panoŝová, D. Influence of the sample orientation in Sn2P2S6 crystals on the hydrostatic piezoelectric coefficients. centr.eur.j.phys. 1, 91–99 (2003). https://doi.org/10.2478/BF02475554

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  • DOI: https://doi.org/10.2478/BF02475554

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