Ferroelastoelectric phenomena in a uniaxial ferroelectric TGS crystal

Possibility of the ferroelastoelectric behavior manifestations in a uniaxia l ferroelectric TGS crystal was investigated. Analysis of the spontaneous p iezoelectric moduli tensors for each of the 180 degrees-domains formed as a result of the phase transition in TGS revealed possible directions for sim ultaneous application of the electric field and mechanical stresses to indu ce the switching effect in TGS. Influence of the uniaxial mechanical stress es sigma(11), sigma(22), sigma(33) on the parameters of saturated and unsat urated dielectric hysteresis loops in TGS is considered. It was found that a nontraditional E(3)sigma(12) combination of fields may lead to the domain switching in TGS crystals. (C) 2000 MAIK "Nauka/Interperiodica".