Elastic constants and softening of acoustic modes in A2MX6-crystals observed by Brillouin scattering

1980 ◽  
Vol 37 (4) ◽  
pp. 321-332 ◽  
Author(s):  
W. Henkel ◽  
J. Pelzl ◽  
K. H. H�ck ◽  
H. Thomas
Keyword(s):  
Elastic Constants ◽  
Brillouin Scattering ◽  
Acoustic Modes

Brillouin-scattering determination of the elastic constants of epitaxial fccC60film

1995 ◽  
Vol 52 (12) ◽  
pp. R8707-R8710 ◽  
Author(s):  
D. Fioretto ◽  
G. Carlotti ◽  
G. Socino ◽  
S. Modesti ◽  
C. Cepek ◽  
...  
Keyword(s):  
Elastic Constants ◽  
Brillouin Scattering

Normal acoustic modes and Brillouin scattering in single-mode optical fibers

1979 ◽  
Vol 19 (10) ◽  
pp. 4986-4998 ◽  
Author(s):  
P. J. Thomas ◽  
N. L. Rowell ◽  
H. M. van Driel ◽  
G. I. Stegeman
Keyword(s):  
Optical Fibers ◽  
Brillouin Scattering ◽  
Single Mode ◽  
Acoustic Modes

The elastic constants of silicon carbide: A Brillouin-scattering study of 4H and 6H SiC single crystals

1997 ◽  
Vol 82 (6) ◽  
pp. 3152-3154 ◽  
Author(s):  
K. Kamitani ◽  
M. Grimsditch ◽  
J. C. Nipko ◽  
C.-K. Loong ◽  
M. Okada ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Single Crystals ◽  
Elastic Constants ◽  
Brillouin Scattering ◽  
Scattering Study

scholarly journals Elastic Constants of Diamond-Like Carbon Films by Surface Brillouin Scattering

1999 ◽  
Vol 593 ◽  
Author(s):  
A.C. Ferrari ◽  
J. Robertson ◽  
R. Pastorelli ◽  
M.G. Beghi ◽  
C.E. Bottani
Keyword(s):  
Thin Films ◽  
Amorphous Carbon ◽  
Elastic Constants ◽  
Acoustic Waves ◽  
Brillouin Scattering ◽  
Surface Acoustic Waves ◽  
Carbon Films ◽  
Diamond Like Carbon ◽  
Amorphous Carbon Films ◽  
Tetrahedral Amorphous Carbon

ABSTRACTThe elastic constants of thin Diamond-Like Carbon (DLC) films supply important information, but their measurement is difficult. Standard nanoindentation does not directly measure the elastic constants and has strong limitations particularly in the case of hard thin films on softer substrates, such as tetrahedral amorphous carbon on Si. Surface acoustic waves provide a better mean to investigate elastic properties. Surface Brillouin scattering (SBS) intrinsically probes acoustic waves of the wavelength which is appropriate to test the properties of films in the tens to hundreds of nanometers thickness range. SBS can be used to derive all the isotropic elastic constants of hard-on-soft and soft-on-hard amorphous carbon films of different kinds, with thickness down to less than 10 nm. The results help to resolve the previous uncertainties in mechanical data. The Young's modulus of tetrahedral amorphous carbon (ta-C) turns out to be lower than that of diamond, while the moduli of hydrogenated ta-C (ta-C:H) are considerably lower than those of ta-C because of the weakening effect of C-H bonding.

scholarly journals Brillouin Scattering and Elastic Constants of Potassium Bromide

1973 ◽  
Vol 46 (10) ◽  
pp. 3031-3035 ◽  
Author(s):  
Hiroatsu Matsuura ◽  
Tatsuo Miyazawa
Keyword(s):  
Elastic Constants ◽  
Brillouin Scattering ◽  
Potassium Bromide

Brillouin scattering and ultrasonic measurements of the elastic constants of CuGeO3

1999 ◽  
Vol 11 (21) ◽  
pp. 4157-4162 ◽  
Author(s):  
C Ecolivet ◽  
M Saint-Paul ◽  
G Dhalenne ◽  
A Revcolevschi
Keyword(s):  
Elastic Constants ◽  
Brillouin Scattering ◽  
Ultrasonic Measurements
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