Structural nature of Li-7 and B-11 sites in the nonlinear optical material LiB3O5 using static NMR and MAS NMR

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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 T-1 rho, which was obtained from the B-11 MAS NMR. Moreover, the T-1 and T-1 rho values for Li-7 and B-11 are compared, and the activation energies were obtained. The T-1 rho 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.
Publisher
ELSEVIER SCIENCE SA
Issue Date
2014-10
Language
English
Article Type
Article
Keywords

SINGLE-CRYSTAL; LI2B4O7; BETA-BAB2O4; SPECTROSCOPY; GENERATION; DENSITY

Citation

MATERIALS CHEMISTRY AND PHYSICS, v.147, no.3, pp.644 - 648

ISSN
0254-0584
DOI
10.1016/j.matchemphys.2014.06.002
URI
http://hdl.handle.net/10203/193138
Appears in Collection
PH-Journal Papers(저널논문)
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