کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1521844 995300 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural nature of 7Li and 11B sites in the nonlinear optical material LiB3O5 using static NMR and MAS NMR
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Structural nature of 7Li and 11B sites in the nonlinear optical material LiB3O5 using static NMR and MAS NMR
چکیده انگلیسی
The structural nature of the nonlinear optical properties of LiB3O5 is analyzed using single-crystal nuclear magnetic resonance (NMR) and magic angle spinning (MAS) NMR. The 3-coordinated trigonal [B(1) and B(2)] and 4-coordinated tetragonal [B(3)] sites are distinguished using the spectrum and the spin-lattice relaxation time in rotating frame T1ρ, which was obtained from the 11B MAS NMR. Moreover, the T1 and T1ρ values for 7Li and 11B are compared, and the activation energies were obtained. The T1ρ values of the boron nuclei in LiB3O5 show no significant changes. These results may be closely related to the largest second-order nonlinear optical coefficient.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 147, Issue 3, 15 October 2014, Pages 644-648
نویسندگان
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