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Mechanical and dielectric studies of L-Prolinium Tartrate (LPT) NLO single crystals

S. SURESH1,* , A. RAMANAND1, D. JAYARAMAN2

Affiliation

  1. Department of Physics, Loyola College, Chennai-600 034, India
  2. Department of Physics, Loyola Institute of Technology, Chennai-602 103, India

Abstract

L-Prolinium Tartrate (LPT) crystals are capable of generating second harmonics, a unique property which can be used for device fabrication in opto-electronics. Single crystals of L-Prolinium tartrate (C5H10NO2)+(C4H5O6)-, were grown from aqueous solution by slow evaporation technique. Single crystal X-ray diffraction analysis shows that the crystal belongs to monoclinic system with the space group P21. Several solid state physical parameters have been determined for the grown crystals. The anisotropy in Vicker’s micro hardness leads to the study of various parameters such as fracture toughness (Kc), brittleness index (B) and yield strength (σv). The dielectric constant and the dielectric loss of the grown crystal were studied as a function of frequency and temperature.

Keywords

Single crystal, Growth from solution, X-ray diffraction, Vicker’s microhardness tester, Dielectric constant.

Citation

S. SURESH, A. RAMANAND, D. JAYARAMAN, Mechanical and dielectric studies of L-Prolinium Tartrate (LPT) NLO single crystals, Optoelectronics and Advanced Materials - Rapid Communications, 4, 11, November 2010, pp.1743-1746 (2010).

Submitted at: Sept. 8, 2010

Accepted at: Nov. 10, 2010