Senthilkumar, K. and Babu, S. Moorthy and Kumar, Binay and Bhagavannarayana, G. (2012) Improvement in Structural, Dielectric, Ferroelectric and Mechanical Properties in Metal Ions Doped Glycine Phosphite Single Crystals. Ferroelectrics , 437. pp. 126-136. ISSN 0015-0193

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Abstract

The single crystals of metal ions (Zn2+, Mg2+ and Cd2+) doped Glycine Phosphite (GPI) were grown from aqueous solution by employing the solvent evaporation and slow cooling techniques. Incorporation of dopants with GPI was confirmed by X-ray fluorescence spectroscopic analysis. Single crystal X-ray diffraction analysis was carried out to determine the lattice parameters and to analyze the structural morphology of GPI with dopants. Ferroelectric transition temperature was identified by dielectric measurements for pure and doped GPI crystals. Transition temperature of doped crystal increases significantly. Piezoelectric charge coefficient d(33) was measured for pure and doped GPI crystals. Hysteresis (P-E) loop was traced for pure and doped GPI crystals with different biasing field. Crystalline perfection of doped GPI crystals was determined by HRXRD analysis. Microhardness measurements were carried out for understanding the mechanical stability of the crystals, the mechanical parameters such as elastic stiffness constant 'C-11', yield strength 'sigma(y)' were calculated from hardness value. Meyer's index number was in the range of 1.6 to 2 for all the crystals. This indicates that the grown crystals are relatively soft materials.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Taylor & Francis.
Subjects:	Materials Science Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	12 Mar 2020 11:40
Last Modified:	12 Mar 2020 11:40
URI:	http://npl.csircentral.net/id/eprint/3532

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