Growth and characterization of crack-free scheelite calcium molybdate single crystal fiber

High-optical and structural quality single-phase scheelite calcium molybdate (CaMoO4) single crystal was grown by the floating zone-like technique named laser-heated pedestal growth. The optical quality of the as-grown crystal was characterized by optical microscopy and absorption measurements, whereas the structural quality was evaluated by X-ray rocking curve profile, X-ray phase contrast radiography and X-ray topography measurements. The structural refinement of X-ray powder diffraction data recorded from crushed crystals was used to check the formation of single phase CaMoO4. All the obtained results indicate that completely crack-free, single phase, clear and transparent CaMoO4 crystal was grown. (C) 2002 Elsevier Science B.V. All rights reserved.