Dispersion of localized elastic modes in thin supported gold layers measured by Brillouin scattering
- 15 October 1985
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 58 (8), 3166-3168
- https://doi.org/10.1063/1.335822
Abstract
The dispersion of higher‐order localized elastic modes of gold layers on glass has been measured by Brillouin scattering. For layer thicknesses h≥100 Å the dispersion of the sound velocities is well described by elastic continuum theory, whereas for h<100 Å deviations occur due to island formation. The results yield a reliable, nondestructive method to determine either elastic constants and mass density or the thickness of thin supported metal layers.Keywords
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