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Browse Journals & Magazines > Applied Physics Letters ...> Volume:58 Issue:23 Help

Characterization of LiNbO3 crystals by line‐focus‐beam acoustic microscopy

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4 Author(s)
Kushibiki, J. ; Department of Electrical Engineering, Tohoku University, Sendai 980, Japan ; Takahashi, H. ; Kobayashi, T. ; Chubachi, N.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.104813 

Line‐focus‐beam (LFB) acoustic microscopy is applied to quantitative characterization of piezoelectric LiNbO3 crystals to demonstrate the usefulness of this new analytical technique. Experimental relations between chemical composition ratios of Li/Nb and leaky surface acoustic wave (LSAW) velocities for 128°YX LiNbO3 wafers are determined. LSAW velocity measurements are carried out for commercial wafers obtained from a series of crystal growths. Small changes of 0.092% are detected due to the compositional variation. It is estimated that the ‘‘effective’’ congruent composition in the production line is 48.440 Li2O mol% with the density of 4647.4 kg/m3.

Published in:
Applied Physics Letters  (Volume:58 ,  Issue: 23 )

Date of Publication: Jun 1991

Page(s):
2622 - 2624
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.104813
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Jun 1991

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