Growth and characterizations of ZnO-doped near-stoichiometric LiNbO3 crystals by zone-leveling Czochralski method
Resource
Journal of Crystal Growth 289 (1): 145-150
Journal
Journal of Crystal Growth
Journal Volume
289
Journal Issue
1
Pages
145-150
Date Issued
2006
Date
2006
Author(s)
Tsai, C.B.
Hsu, W.T.
Shih, M.D.
Lin, Y.Y.
Huang, Y.C.
Hsieh, C.K.
Hsu, W.C.
Hsu, R.T.
Lan, C.W.
DOI
246246/2006111501233495
Abstract
ZnO-doped near-stoichiometric lithium niobate (SLN) crystals were grown by the zone-leveling Czochralski (ZLCz) technique. The
crystal was pulled from a Li-rich (60 mol% of Li2O) solution having an SLN solid supplied from below in a slender platinum crucible.
The segregation coefficient of ZnO was found being about 0.58, and this could cause dopant segregation along the grown crystal.
However, with a higher ZnO concentration in the solution zone, the composition homogeneity along grown crystal could be achieved.
The properties of SLN at different zinc concentrations were measured, and the Curie temperature and cutoff wavelength showed a
transition with the zinc concentration at about 1 mol%. Based on the reported mechanism, the anti-site defects of the grown crystals were
about at the same concentration
Subjects
A1. Defects
A1. Segregation
A2. Growth from solution
A2. Single crystal growth
B1. Lithium compounds
B1. Oxides
B2. Nonlinear-optic
materials
materials
Publisher
Taipei:National Taiwan University Dept Chem Engn
Type
journal article
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