Surface Brillouin scattering at high pressure: Application to a thin supported gold film

J. C. Crowhurst; G. R. Hearne; J. D. Comins; A. G. Every; P. R. Stoddart

doi:10.1103/PhysRevB.60.R14990

Surface Brillouin scattering at high pressure: Application to a thin supported gold film

J. C. Crowhurst, G. R. Hearne, J. D. Comins, A. G. Every, P. R. Stoddart

University of the Witwatersrand

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Surface Brillouin scattering (SBS) has been used to examine the elastic properties of a supported gold film at high pressure. The velocities of the acoustic modes of a 99 nm thick film have been measured to a pressure of 4.8 GPa, by means of a gem anvil cell with cubic zirconia anvils. A large stiffening of the film has been detected, most clearly revealed by an increase in the value of the c₄₄ elastic constant. The work demonstrates the potential of the SBS technique in high-pressure studies of the elastic properties of opaque materials.

Original language	English
Pages (from-to)	R14990-R14993
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	60
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.60.R14990
Publication status	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.60.R14990

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AU - Stoddart, P. R.

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AB - Surface Brillouin scattering (SBS) has been used to examine the elastic properties of a supported gold film at high pressure. The velocities of the acoustic modes of a 99 nm thick film have been measured to a pressure of 4.8 GPa, by means of a gem anvil cell with cubic zirconia anvils. A large stiffening of the film has been detected, most clearly revealed by an increase in the value of the c44 elastic constant. The work demonstrates the potential of the SBS technique in high-pressure studies of the elastic properties of opaque materials.

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Surface Brillouin scattering at high pressure: Application to a thin supported gold film

Abstract

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