Surface acoustic wave velocity and elastic constants of cubic GaN

Riob�o, Rafael J. Jim�nez; Cusc�, Ramon; Prieto, Carlos; Kopittke, Caroline; Novikov, Sergei V.; Art�s, Luis

Abstract

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.

Citation

Riobóo, R. J. J., Cuscó, R., Prieto, C., Kopittke, C., Novikov, S. V., & Artús, L. (2016). Surface acoustic wave velocity and elastic constants of cubic GaN. Applied Physics Express, 9(6), Article 061001. https://doi.org/10.7567/APEX.9.061001

• Journal Article Type: Article
• Acceptance Date: Apr 6, 2016
• Online Publication Date: May 6, 2016
• Publication Date: May 6, 2016
• Deposit Date: Jul 11, 2016
• Publicly Available Date: Jul 11, 2016
• Journal: Applied Physics Express
• Print ISSN: 1882-0778
• Electronic ISSN: 1882-0786
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 9
• Issue: 6
• Article Number: 061001
• DOI: https://doi.org/10.7567/APEX.9.061001
• Public URL: https://nottingham-repository.worktribe.com/output/791221
• Publisher URL: http://iopscience.iop.org/article/10.7567/APEX.9.061001/meta