Structural and hardness of nonlinear optical L-alanine single crystals

S. Gokul Raj1*, G. Ramesh Kumar2

1Department of Physics, Vel Tech Dr. RR & Dr. SR Technical University, Avadi, Chennai 600062, India

2Department of Physics, University College of Engineering Arni, Anna University of Technology Chennai, Arni 632317, India

Adv. Mater. Lett., 2011, 2 (3), pp 176-182

DOI: 10.5185/amlett.2011.1219

Publication Date (Web): Apr 08, 2012



Single crystals of pure and Deuterated L-alanine have been grown by both slow cooling and seed rotation techniques. The grown nonlinear optical crystals were subjected to single crystal X-ray diffraction for determining its lattice parameters and morphology. Thermal expansion measurements were carried for the Deuterated crystals of L-alanine using thermomechanical analyzer in order to ascertain the strain tensors along the three mutually perpendicular crystallographic directions. Microhardness study was also undergone on deuterated L-alanine single crystals on a prominent plane for determining the mechanical strength of the grown crystals. The results have been discussed in detail.


Characterization, crystal morphology, optical microscopy, recrystallization, organic compounds, nonlinear optical materials

Upcoming Congress

Knowledge Experience at Sea TM