Zone-levelling Czochralski growth of MgO-doped near-stoichiometric lithium niobate single crystals

The zone-levelling Czochralski (ZLCz) technique was used to grow MgO-doped near-stoichiometric lithium niobate (SLN) crystals for the first time. The crystal was pulled from a Li-rich solution (58–60 mol% of Li 2O) having an SLN solid supplied from below in a slender platinum crucible. An inner cruc...

Full description

Saved in:
Bibliographic Details
Published in:Journal of crystal growth 2005-03, Vol.275 (3), p.504-511
Main Authors: Tsai, C.B., Hsia, Y.T., Shih, M.D., Tai, C.Y., Hsieh, C.K., Hsu, W.C., Lan, C.W.
Format: Article
Language:English
Subjects:
A1. Characterization
A1. Segregation
A2. Zone-levelling Czochralski method
B1. Growth from solutions
B1. Lithium niobate
B2. Nonlinear optic materials
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from melts
zone melting and refining
Materials science
Methods of crystal growth
physics of crystal growth
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The zone-levelling Czochralski (ZLCz) technique was used to grow MgO-doped near-stoichiometric lithium niobate (SLN) crystals for the first time. The crystal was pulled from a Li-rich solution (58–60 mol% of Li 2O) having an SLN solid supplied from below in a slender platinum crucible. An inner crucible was also used to avoid bubble incorporation. With 1 mol% MgO doping, three inclusion-free SLN crystals were grown. The transmittance along the grown crystals was found satisfactory (76±1%) having an absorption edge of 303±1 nm. The small variation of the composition (Li/Nb=0.975±0.005 and Mg/Nb=1.07±0.02 mol%), refractive indices ( n o = 2.286 ± 0.0005 and n e = 2.189 ± 0.0007 ), and the Curie temperature (1209.5±1.5 °C) further confirm ZLCz as a proven method for growing SLN single crystals.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2004.12.026