P3I-6 Interface Leaky Longitudinal Waves in Lithium Niobate and Lithium Tantalate

Author(s):  
V. I. Grigorievski ◽  
V. P. Plessky ◽  
A. V. Grigorievskiy
2001 ◽  
Vol 48 (1) ◽  
pp. 322-328 ◽  
Author(s):  
I.E. Kuznetsova ◽  
B.D. Zaitsev ◽  
S.G. Joshi ◽  
I.A. Borodina

Author(s):  
S. Huband ◽  
D. S. Keeble ◽  
N. Zhang ◽  
A. M. Glazer ◽  
A. Bartasyte ◽  
...  

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.


2005 ◽  
Vol 120 (1-3) ◽  
pp. 125-129 ◽  
Author(s):  
S. Ganesamoorthy ◽  
M. Nakamura ◽  
S. Takekawa ◽  
S. Kumaragurubaran ◽  
K. Terabe ◽  
...  

2019 ◽  
Vol 55 (5) ◽  
pp. 524-532 ◽  
Author(s):  
V. S. Gorelik ◽  
S. D. Abdurakhmonov ◽  
N. V. Sidorov ◽  
M. N. Palatnikov

2008 ◽  
Vol 1111 ◽  
Author(s):  
Nate Woodward ◽  
Keiko Miyahara ◽  
Alex Toulouse ◽  
Pavel Capek ◽  
Volkmar Dierolf

AbstractWe present our site-selective spectroscopic studies on Er3+ doped nearly stoichiometric lithium tantalate (LiTaO3) and compare the results with earlier studies performed on the same dopant in the isostructural lithium niobate host. We present our results in terms of the number and spectroscopic characteristics of the incorporation sites. Overall, the sites found in LiTaO3 closely resemble in their behavior the ones found in LiNbO3 such that the conclusion about the nature of the site drawn in the latter host can be transferred to LiTaO3 as well.


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