Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1521844 | Materials Chemistry and Physics | 2014 | 5 Pages |
Abstract
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 T1Ï, which was obtained from the 11B MAS NMR. Moreover, the T1 and T1Ï values for 7Li and 11B are compared, and the activation energies were obtained. The T1Ï 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.
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Authors
Ae Ran Lim, Choon Sup Yoon,