Surface acoustic wave velocity and elastic constants of cubic GaN

Riobóo, Rafael J. Jiménez and Cuscó, Ramon and Prieto, Carlos and Kopittke, Caroline and Novikov, Sergei V. and Artús, Luis (2016) Surface acoustic wave velocity and elastic constants of cubic GaN. Applied Physics Express, 9 (6). 061001. ISSN 1882-0786

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We present high-resolution surface Brillouin scattering measurements on cubic GaN layers grown on GaAs substrate. By using a suitable scattering geometry, scattering by surface acoustic waves is recorded for different azimuthal angles, and the surface acoustic wave velocities are determined. A comparison of experimental results with numerical simulations of the azimuthal dependence of the surface wave velocity shows good agreement and allows a consistent set of elastic constants for c-GaN to be determined.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
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Depositing User: Eprints, Support
Date Deposited: 11 Jul 2016 11:14
Last Modified: 16 Oct 2017 03:09

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