Title :
Lattice vibration spectra of potassium lithium niobate single crystals
Author :
Youbao Wan ; Sang-Im Yoo ; Qing Wang ; Chu Junhao
Author_Institution :
Mater. Sci. & Eng., Seoul Nat. Univ., South Korea
Abstract :
The lattice vibration spectra of potassium lithium niobate (KLN) single crystals have been studied using Raman spectroscopy. The characteristic Raman peak due to the bend vibration mode of the [NbO/sub 6/]/sup 7-/ octahedra is split into three peaks as the Li ion content of the KLN crystal is increased, supporting that the vibration modes of the octahedrons are slightly perturbed by the bend vibration mode of Li in C-site.
Keywords :
Raman spectra; lithium compounds; phonon spectra; potassium compounds; stoichiometry; KLN crystal; KLiNbO/sub 3/; Li ion content; Raman spectroscopy; [NbO/sub 6/]/sup 7-/ octahedron; bend vibration mode; characteristic Raman peak; lattice vibration spectra; potassium lithium niobate single crystals; vibration modes; Crystals; Frequency conversion; Infrared spectra; Lattices; Lithium niobate; Niobium compounds; Optical scattering; Raman scattering; Spectroscopy; Vibration measurement;
Conference_Titel :
Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7423-1
DOI :
10.1109/ICIMW.2002.1076092
