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2008 | 114 | 2 | 455-461
Article title

X-Ray Topographic Studies of Defect Structure in YVO_4 Crystals

Content
Title variants
Languages of publication
EN
Abstracts
EN
The perfection of YVO_4 crystals, which are predicted to replace formerly used YAG garnets due to higher quantum efficiency and lower excitation level, was studied. The investigations of Czochralski grown undoped YVO_4 single crystals were performed mainly by means of X-ray topographic methods. Both synchrotron and conventional X-ray sources were used. The study revealed relatively high density of weak point-like contrasts which can be most probably interpreted as dislocation outcrops. In regions of the crystal close to its boundary we observed glide bands. It was also found that in some regions the dislocations form local subgrain boundaries. The white beam back reflection and monochromatic beam topography allowed to evaluate a local misorientation which not exceeded several angular minutes. No segregation fringes were observed proving a good homogeneity of chemical composition.
Keywords
EN
Publisher

Year
Volume
114
Issue
2
Pages
455-461
Physical description
Dates
published
2008-08
received
2007-09-24
Contributors
author
  • Institute of Atomic Energy, 05-400 Otwock-Świerk, Poland
  • Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland
  • Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland
author
  • Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland
  • Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
author
  • Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland
  • Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
  • Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
author
  • HASYLAB at DESY, Notkestr. 85, 22-603 Hamburg, Germany
References
  • 1. S. Wu, G. Wang, J. Xie, X. Wu, G. Li, J. Cryst. Growth 249, 176 (2003)
  • 2. S. Wu, G. Wang, J. Xiea, J. Cryst. Growth 266, 496 (2004)
  • 3. H. Zhang, Y. Yu, Y. Cheng, J. Liu, H. Li, W. Ge, X. Cheng, X. Xu, J. Wang, M. Jiang, J. Cryst. Growth 283, 438 (2005)
  • 4. M. Kruczek, E. Talik, H. Sakowska, W. Szyrski, Z. Ujma, D. Skrzypek, J. Cryst. Growth 275, e1715 (2005)
  • 5. B.Q. Hu, Y.Z. Zhang, X. Wu, X.L. Chen, J. Cryst. Growth 226, 511 (2001)
  • 6. D.E. Eakins, J.B. LeBret, M.G. Norton, D.F. Bahr, J. Cryst. Growth 266, 411 (2004)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv114n217kz
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