کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1793265 1524480 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The radial distribution of dopant (Cr, Nd, Yb, or Ce) in yttrium aluminum garnet (Y3Al5O12) single crystals grown by the micro-pulling-down method
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
The radial distribution of dopant (Cr, Nd, Yb, or Ce) in yttrium aluminum garnet (Y3Al5O12) single crystals grown by the micro-pulling-down method
چکیده انگلیسی

Dopant distribution in yttrium aluminum garnet (YAG:Y3Al5O12) shaped crystal grown via the micro-pulling-down method depends primarily on the distribution coefficient (k0)(k0). The solid-favoring dopants (k0>1.0)(k0>1.0), Cr and Yb, concentrated in the central core of the crystal, while the liquid-favoring dopants (k0<1.0)(k0<1.0), Nd and Ce, concentrated in the rim. Secondary rare-earth oxide phases were sometimes segregated and crystallized circumferentially with Nd and Ce dopant. The dopant distribution profile was also controlled by the position of the melt entrance hole in the crucible shaper, which was confirmed by SIMPLER calculation. Segregation/distribution coefficients for Cr, Yb, Nd, and Ce in YAG were found to be 1.5, 1.01, 0.1, and 0.01, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 311, Issues 23–24, 1 December 2009, Pages 4763–4769
نویسندگان
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