Elastic constants, internal friction, and piezoelectric coefficient of α-TeO2

Ogi, Hirotsugu; Fukunaga, Masashi; Hirao, Masahiko et al.

Physical Review B - Condensed Matter and Materials Physics, 2004, 69(2), 024104-1-024104-8

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Identifier to cite or link to this item: https://hdl.handle.net/11094/84176

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Title
Elastic constants, internal friction, and piezoelectric coefficient of α-TeO2
Creator
NRID
1000090252626 1000090252626
researchmap permalink
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Scopus Author ID
35563683500 35563683500
CreatorName
Ogi, Hirotsugu
CreatorName
Fukunaga, Masashi
NRID
1000080112027 1000080112027
CreatorName
Hirao, Masahiko
CreatorName
Ledbetter, Hassel
Description
Ogi H., Fukunaga M., Hirao M., et al. "Elastic constants, internal friction, and piezoelectric coefficient of α-TeO2", Physical Review B - Condensed Matter and Materials Physics, 69(2), 024104, 2004. https://doi.org/10.1103/PhysRevB.69.024104.
Abstract
We studied the interrelationship of elastic and piezoelectric properties with the lattice structure and crystal physics of paratellurite (α - TeO2). Tetragonal paratellurite (D44, P422) shows six independent elastic constants Cijkl, the associated internal friction Q-1ijkl, and one piezoelectric coefficient e14. We determined simultaneously these material coefficients using resonant ultrasound spectroscopy coupled with laser-Doppler interferometry. Mode identification, essential for success, was done by measuring the displacement distributions on a vibrating-specimen surface. Our Cijkl were consistent with reported values measured by conventional methods. Our e14 exceeds the reported value by 53%. We focus on several unusual elastic properties, including a negative Poisson ratio. Considering a star-shape truss structure on the basal plane consistently explains all of them. Internal friction correlates with the Cijkl temperature derivatives, suggesting phonon-phonon interactions as a dominant cause of the mechanical loss. © 2004 The American Physical Society.
Publisher
American Physical Society
Source Title
Physical Review B - Condensed Matter and Materials Physics
Volume (Issue)
69(2)
Page
024104-1-024104-8
Date of Issued
2004-01-15
Language
English
Handle URL
https://hdl.handle.net/11094/84176
PISSN
10980121
eISSN
1550235X
NCID
AA11187113
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/PhysRevB.69.024104
Access Rights
open access
CopyRight
Copyright 2004 by the American Physical Society
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article