کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1610074 | 1516268 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Superstructure studies in hydrothermal-grown RbBe2BO3F2 crystals
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Deep-UV nonlinear optical crystal RbBe2BO3F2 (RBBF) grown by the hydrothermal method was found to have a centrosymmetric structure of R3¯c by powder X-ray diffraction. The structure of R3¯c has cell parameters of a = 4.44223(11) Ã
and c = 39.6696(12) Ã
in the lattice where the (BO3)3â groups turn 60° along each (Be2BO3F2)â layer in the a-b plane and it is double size along the c-axis compared with standard R32 structure. As the examined RBBF shows a very low second harmonic generation capability, a stacking fault model was proposed that the hydrothermal RBBF is nonuniform with a mixture of both R32 and R3¯c structures using the DIFFaX program.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 625, 15 March 2015, Pages 118-121
Journal: Journal of Alloys and Compounds - Volume 625, 15 March 2015, Pages 118-121
نویسندگان
Tao Xu, Lijuan Liu, Xiaoyang Wang, Haitao Zhou, Xiaoling He, Changlong Zhang, Chuangtian Chen,