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1 2013

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The birefringence spectroscopic studies on ferroelectric glycine phosphite (GPI) single crystals

Bhoopathi G., Jayaramakrishnan V., Ravikumar K., Prasanyaa T., Karthikeyan S.

Materials Science Poland

2013

Vol. 31, No. 1

1-5

The ferroelectric glycine phosphite single crystals have been grown from aqueous solution by both conventional and Sankaranarayanan-Ramasamy methods. The modified channelled spectrum method has been adopted for spectral dependence of optical birefringence studies over the wavelength range of 480-620 nm, which show that both the crystals exhibit relatively high birefringence values. The photoluminescence excitation studies were carried out for the grown crystals in a wide wavelength range between 300 nm and 600 nm at 224 K. The crystals were also subjected to scanning electron microscopy analysis in order to determine the ferroelectric domain pattern configuration.