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Elastic, anelastic, and piezoelectric coefficients of GaN.
- Source :
-
Journal of Applied Physics . Jan2012, Vol. 111 Issue 1, p013509. 6p. 1 Black and White Photograph, 3 Charts, 2 Graphs. - Publication Year :
- 2012
-
Abstract
- We report elastic, anelastic, and piezoelectric coefficients of wurtzite GaN measured by resonant-ultrasound spectroscopy coupled with laser-Doppler interferometry. Five rectangular parallelepiped specimens, measuring 6.5 × 2.0 × 4.0 mm3, cut from two single crystals were used. Our values of elastic and piezoelectric coefficients were C11 = 359.4 GPa, C12 = 129.2 GPa, C13 = 92.0 GPa, C33 = 389.9 GPa, C44 = 98.0 GPa, e15 = 0.10 C/m2, e31 = 0.17 C/m2, and e33 = 0.29 C/m2. In anelastic coefficients, anisotropy was observed between Q11-1 and Q33-1. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 111
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 70338645
- Full Text :
- https://doi.org/10.1063/1.3674271