Structure, crystalline perfection, mechanical, second harmonic generation efficiency, laser damage threshold and piezoelectric properties of bis nicotinamidium bis D-tartrate 1.25-hydrate single crystals

Bis nicotinamidium bis D-tartrate 1.25-hydrate single crystals have been grown by slow evaporation solution growth technique. Single crystal X-ray diffraction study indicates that the grown crystal crystallizes in monoclinic system with space group P21. Crystalline perfection of the crystal has been evaluated by high resolution X-ray diffraction technique and it reveals that the crystal is free from structural grain boundaries. Mechanical stability of the crystal has been analyzed by Vickers microhardness measurement and it exhibits reverse indentation size effect. The second harmonic generation efficiency of the grown crystal has been checked and its value is 1.24 times that of potassium dihydrogen phosphate. The surface laser damage threshold for the crystal has been analyzed and its value is 0.644 GW/cm2. Piezoelectric d33 co-efficient for the crystal has been examined and its value is 29.8 pC/N.