Characterization studies on the additives mixed l-arginine phosphate monohydrate (LAP) crystals

A. S. Haja Hameed, C. Karthikeyan, G. Ravi, S. Rohani

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

l-arginine phosphate monohydrate (LAP), potassium thiocyanate (KSCN) mixed LAP (LAP:KSCN) and sodium sulfite (Na2SO3) mixed LAP (LAP:Na2SO3) single crystals were grown by slow cooling technique. The effect of microbial contamination and coloration on the growth solutions was studied. The crystalline powders of the grown crystals were examined by X-ray diffraction and the lattice parameters of the crystals were estimated. From the FTIR spectroscopic analysis, various functional group frequencies associated with the crystals were assigned. Vickers microhardness studies were done on {1 0 0} faces for pure and additives mixed LAP crystals. From the preliminary surface second harmonic generation (SHG) results, it was found that the SHG intensity at (1 0 0) face of LAP:KSCN crystal was much stronger than that of pure LAP.

Original languageEnglish
Pages (from-to)1363-1367
Number of pages5
JournalPhysica B: Condensed Matter
Volume406
Issue number8
DOIs
StatePublished - 1 Apr 2011

Keywords

  • FTIR
  • Growth from solutions
  • Impurities
  • Microhardness
  • Nonlinear optical materials
  • Surface SHG
  • XRD

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