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Abstract:
NaCl1-xBrxO3 single crystals were prepared by unidirectional crystallization. The influences of the composition on structure. quality, and optical properties of NaCl1-xBrxO3 crystals were investigated. X-ray powder diffraction analysis revealed that the diffraction patterns for the NaCl1-xBrxO3 crystals have almost the same set of peaks as those of NaClO3 and NaBrO3, except that an extra very weak forbidden (100) diffraction peak was detected at about 13.3 degrees 2 theta for crystals grown from solutions of BrO3- similar to 15-70 at. % (i.e., x=0.15-0.70). These crystals can, therefore, be considered to have a distorted cubic structure closely related to the cubic structures of NaClO3 (x=0) and NaBrO3 (x=1). Our study also found that good-quality crystals can only be obtained in two doping ranges (x > 0.75 or x < 0.10). Outside these two ranges, the crystals tended to crack and even became opaque. Lattice distortions in the crystals were the probable cause as revealed by X-ray powder diffraction patterns. The optical activity of NaCl1-xBrxO3 crystals measured by a laser was found to decrease from 2.89 to 2.01 degrees/mm with increasing value of x from 0 to 0.02. Stimulated Raman scattering of NaBr0.90Cl0.10O3 Crystals was measured using a 0.532-mu m ps laser as a pump source and four anti-Stokes lines plus six Stokes lines were observed. The fourth anti-Stokes emission was found to be at 454.5 nm and the sixth Stokes emission at 713.6 nm. Its Raman gain coefficient was determined to be 18.4 cm/Gw. (C) 2009 International Centre for Diffraction Data. [DOI: 10.1154/1.3193561]
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POWDER DIFFRACTION
ISSN: 0885-7156
Year: 2009
Issue: 3
Volume: 24
Page: 234-238
0 . 5 0 0
JCR@2022
ESI Discipline: PHYSICS;
JCR Journal Grade:3
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 4
SCOPUS Cited Count: 5
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
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