Temperature dependent Raman scattering study on LiNbO3 : Zn crystals

Authors
Citation
Yc. Ge et Cz. Zhao, Temperature dependent Raman scattering study on LiNbO3 : Zn crystals, SPECT LETT, 31(8), 1998, pp. 1649-1658
Citations number
7
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
SPECTROSCOPY LETTERS
ISSN journal
00387010 → ACNP
Volume
31
Issue
8
Year of publication
1998
Pages
1649 - 1658
Database
ISI
SICI code
0038-7010(1998)31:8<1649:TDRSSO>2.0.ZU;2-M
Abstract
In this paper the results of a Raman study on LiNbO3:Zn crystals are presen ted. It is found that the symmetry, distribution and relative intensities o f the vibrational modes show few changes, as compared to the results of pur e LiNbO3 crystals. Some vibrational modes are coupled to each other by dopi ng ZnO into LiNbO3 crystals, and the coupling effects disappear gradually w ith the decrease of temperature. It is suggested that LiNbO3:Zn is substitu te solution and the doped Zn ions substitute for the Nb-Li first and then t he Li ions. The observed vibrational modes in LiNbO3 crystals are mainly de termined by the oxygen octahedra.