کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1494378 | 992906 | 2014 | 5 صفحه PDF | دانلود رایگان |
• A new mixed crystal of Yb:Y0.71Lu0.29VO4s was grown by Czochralski method.
• The dominating defects are block structures, dislocations and sub-grain boundaries.
• Edge dislocations with Burgers vectors of 〈1 0 0〉 were found in grown crystal.
Mixed crystal of Yb:YxLu1−xVO4 was grown by Czochralski method. Defects of dislocations and sub-grain boundaries in Yb:Y0.71Lu0.29VO4 single crystal were studied by using chemical etching and synchrotron X-ray topographic methods. Some of the three intersecting boundaries were revealed by chemical etching method in Yb:Y0.71Lu0.29VO4 crystal. The generalized Read–Shockley formula for intersecting boundaries was introduced to verify the one-to-one correspondence between etching pits along these sub-boundaries and edge dislocations with Burgers vectors of 〈1 0 0〉. Synchrotron X-ray topographic confirmed that the dominating imperfections in the studied Yb:Y0.71Lu0.29VO4 single crystal are a variously developed block structure and sub-grain boundaries.
Journal: Optical Materials - Volume 36, Issue 12, October 2014, Pages 2034–2038