Ledbetter, H.
, Ogi, H.
and Nakamura, N.
(2004),
Elastic, Anelastic, Piezoelectric Coefficients of Monocrystal Lithium Niobate, Mechanics of Materials
(Accessed April 4, 2025)
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Elastic, Anelastic, Piezoelectric Coefficients of Monocrystal Lithium Niobate
Published
Author(s)
, H Ogi, N Nakamura
Abstract
Using improved acoustic spectroscopy, we determined the complete above coefficients (16 independent ones) by measuring the macroscopic resonance frequencies of a single lithium-niobate monocrystal. The improvement consisted of using laser-Doppler interferometry for unambiguous vibration-mode identification. Elastic coefficients C-ijkl agree well with previous reports that used conventional methods. Piezoelectric coefficients e(ijk) agree with the range of four previous reports. Anelastic coefficients Q(ijkl)(-1) reported for the first time, suggest that the crystal's internal friction arises mainly from dislocations, not from intrinsic multiphonon processes.Citation
Mechanics of Materials
Volume
36
Issue
No. 10
Pub Type
Journals
Keywords
acoustic spectroscopy, anelastic coefficients, atomic bonding, Debye temperature, elastic coefficients, ferroelectric, interatomic bonding, internal friction, lithium niobate
Citation
Issues
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Created October 1, 2004, Updated February 17, 2017