scholarly journals Point defects in ZX-cut Lithium niobate and Lithium tantalate and their influence on acousto-electric properties

2018 ◽  
Author(s):  
Chandrima Chatterjee ◽  
Daniel Miller ◽  
Igor Ostrovskii
Keyword(s):  
Lithium Niobate ◽  
Point Defects ◽  
Lithium Tantalate ◽  
Electric Properties

Investigation of acoustic waves in thin plates of lithium niobate and lithium tantalate

2001 ◽  
Vol 48 (1) ◽  
pp. 322-328 ◽  
Author(s):  
I.E. Kuznetsova ◽  
B.D. Zaitsev ◽  
S.G. Joshi ◽  
I.A. Borodina
Keyword(s):  
Lithium Niobate ◽  
Acoustic Waves ◽  
Lithium Tantalate ◽  
Thin Plates

scholarly journals Crystallographic and optical study of LiNb1 − xTaxO3

2017 ◽  
Vol 73 (3) ◽  
pp. 498-506 ◽  
Author(s):  
S. Huband ◽  
D. S. Keeble ◽  
N. Zhang ◽  
A. M. Glazer ◽  
A. Bartasyte ◽  
...  
Keyword(s):  
Phase Transition ◽  
Lithium Niobate ◽  
Lithium Tantalate ◽  
Flux Growth ◽  
Structural Studies ◽  
Optical Study ◽  
X Ray Diffraction ◽  
Growth Technique ◽  
X Ray ◽  
Li Content

Powders of lithium niobate-tantalate across the full compositional range have been made and crystals grown using a lithium vanadate flux growth technique. The Li-content of a lithium tantalate crystal has been determined using the zero-birefringence temperature and Curie measurements, confirming the Li content is between that of congruent and stoichiometric crystals. X-ray diffraction measurements show the Nb/Ta displacement and octahedral tilt both decrease as the Ta content is increased. This also results in a decrease in the lattice parameters from lithium niobate to lithium tantalate. Birefringence measurements on the crystals as a function of temperature have been used to determine the point that the crystals become zero-birefringent, and by comparison with the structural studies have confirmed that it is not related to a phase transition and the structures remain polar through the zero-birefringence points.

A comparative study on the domain switching characteristics of near stoichiometric lithium niobate and lithium tantalate single crystals

2005 ◽  
Vol 120 (1-3) ◽  
pp. 125-129 ◽  
Author(s):  
S. Ganesamoorthy ◽  
M. Nakamura ◽  
S. Takekawa ◽  
S. Kumaragurubaran ◽  
K. Terabe ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Comparative Study ◽  
Single Crystals ◽  
Domain Switching ◽  
Lithium Tantalate ◽  
Switching Characteristics

Nonuniform electromechanical efficiency and point defects in lithium niobate

2017 ◽  
Vol 142 (4) ◽  
pp. 2722-2722
Author(s):  
Chandrima Chatterjee ◽  
Igor Ostrovskii
Keyword(s):  
Lithium Niobate ◽  
Point Defects
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