Abstract
Single crystals of binary solid solutions of triglycine sulphate (TGS) and triglycine selenate, triglycine fluoberyllate (TGFB) and further deuterated solid solutions of TGS and TGFB have been grown. The morphological descriptions of crystals are presented and the growth rates under comparable conditions are determined. The solid solutions can be prepared as homogeneous single crystals, mixed at random, proof of which is given by dielectric and infrared spectra measurements. This fact is also in agreement with thermodynamic theory. The position of the ferroelectric phase transitions of solid solutions can be shifted, according to composition, within the range 22–77°C.
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