Floating zone growth and characterization of ruby single crystals
β Scribed by Xiujun Fan; Yue Wang; Hong Xu; Yijian Jiang
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 282 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0232-1300
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Large, high optical quality single crystals of ruby have been grown successfully by the floating zone method under air atmosphere. The size of the grown crystal is typically 60β70 mm in length and 7β8 mm in diameter. The obtained crystals were red and did not have any macroscopic defects such as cracks and inclusions. Grown crystals were characterized by powder Xβray diffraction (XRD) methods, polarized optical microscopy, scanning electron microscopy (SEM). The absorption and fluorescence spectra were measured at room temperature and the dielectric constant measurements of ruby crystals were also presented. Defects occurring in single crystals of ruby during crystal growth by floating zone method are described, and their correlation with the growth parameters is discussed. The origin and control of these defects in grown crystals were studied and the optimum method was proposed. (Β© 2011 WILEYβVCH Verlag GmbH & Co. KGaA, Weinheim)
π SIMILAR VOLUMES
## Abstract Co single crystals of striationβfree were grown easily by the electronβbeam floatingβzone melting. For these crystals, observations on dislocations were carried out. Slight preferred direction of grown crystals were discussed on the basis of the local step structure on the crystal surfa
## Abstract A novel route to engineer Sr~2~RuO~4~/Sr~3~Ru~2~O~7~ and Sr~3~Ru~2~O~7~/Sr~4~Ru~3~O~10~ natural junctions has been successfully pursued by eutectic solidification in a doubleβmirror optical floating zone furnace in the flux feeding floating zone configuration with Ru selfβflux. The synt
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v