Measurement of the Room‐Temperature Microwave Ultrasonic Attenuation of Z‐Cut Quartz by Brillouin Scattering of Light

1966 ◽  
Vol 40 (2) ◽  
pp. 498-499 ◽  
Author(s):  
C. D. W. Wilkinson ◽  
D. E. Caddes
Keyword(s):  
Room Temperature ◽  
Ultrasonic Attenuation ◽  
Brillouin Scattering ◽  
Scattering Of Light

Pressure dependent ultrasonic properties of hcp hafnium metal

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ramanshu P. Singh ◽  
Shakti Yadav ◽  
Giridhar Mishra ◽  
Devraj Singh
Keyword(s):  
Elastic Constants ◽  
Pressure Range ◽  
Room Temperature ◽  
Ultrasonic Attenuation ◽  
Coupling Constants ◽  
Ultrasonic Properties ◽  
Acoustic Coupling ◽  
Third Order Elastic Constants ◽  
The Stability ◽  
The Given

Abstract The elastic and ultrasonic properties have been evaluated at room temperature between the pressure 0.6 and 10.4 GPa for hexagonal closed packed (hcp) hafnium (Hf) metal. The Lennard-Jones potential model has been used to compute the second and third order elastic constants for Hf. The elastic constants have been utilized to calculate the mechanical constants such as Young’s modulus, bulk modulus, shear modulus, Poisson’s ratio, and Zener anisotropy factor for finding the stability and durability of hcp hafnium metal within the chosen pressure range. The second order elastic constants were also used to compute the ultrasonic velocities along unique axis at different angles for the given pressure range. Further thermophysical properties such as specific heat per unit volume and energy density have been estimated at different pressures. Additionally, ultrasonic Grüneisen parameters and acoustic coupling constants have been found out at room temperature. Finally, the ultrasonic attenuation due to phonon–phonon interaction and thermoelastic mechanisms has been investigated for the chosen hafnium metal. The obtained results have been discussed in correlation with available findings for similar types of hcp metals.

Mandelstam‐Brillouin scattering of light in antiferromagnets (invited)

1982 ◽  
Vol 53 (11) ◽  
pp. 8157-8162 ◽  
Author(s):  
A. S. Borovik‐Romanov ◽  
N. M. Kreines
Keyword(s):  
Brillouin Scattering ◽  
Scattering Of Light

Mechanical and thermophysical properties of actinide monocarbides

2018 ◽  
Vol 32 (21) ◽  
pp. 1850248 ◽  
Author(s):  
Devraj Singh ◽  
Amit Kumar ◽  
Vyoma Bhalla ◽  
Ram Krishna Thakur
Keyword(s):  
Thermophysical Properties ◽  
Room Temperature ◽  
Nearest Neighbor ◽  
Ultrasonic Attenuation ◽  
Thermal Relaxation ◽  
Nonlinearity Parameter ◽  
Micro Hardness ◽  
Temperature Dependent ◽  
Third Order ◽  
Pressure Derivative

This paper describes the mechanical and thermophysical properties of actinide monocarbides AnCs (An=Np and Cm) as a function of temperature and crystallographic direction. The temperature-dependent second- and third-order elastic constant (SOECs and TOECs) have been computed first using Coulomb and Born–Mayer potential up to second nearest neighbor. SOECs have been applied to find out mechanical constant such as bulk modulus, shear modulus, tetragonal modulus, Poisson’s ratio and Zener anisotropy for the prediction of futuristic performance of the NpC and CmC. We also found the value of G/B [Formula: see text] 0.59 for the chosen materials, which indicates that NpC and CmC have brittle nature. The computed elastic constants are further applied directly to indirectly find out the ultrasonic velocity, Grüneisen parameters, pressure derivative, Debye temperature, micro-hardness, Breazeale’s nonlinearity parameter, thermal relaxation time and thermal conductivity. These evaluated parameters were finally used to compute ultrasonic attenuation of the NpC and CmC along [Formula: see text], [Formula: see text] and [Formula: see text] directions at room temperature. The behavior of the obtained results of this investigation has been compared with similar type of materials.

Ultrasonic Attenuation in Insulators at Room Temperature

1966 ◽  
Vol 37 (4) ◽  
pp. 1542-1548 ◽  
Author(s):  
D. W. Oliver ◽  
G. A. Slack
Keyword(s):  
Room Temperature ◽  
Ultrasonic Attenuation

scholarly journals Entanglement in the Process of Stimulated Brillouin Scattering of Light

2004 ◽  
Vol 20 (1-2) ◽  
pp. 11-14 ◽  
Author(s):  
S.V. Kuznetsov ◽  
A.V. Kyusev ◽  
O.V. Man'ko ◽  
N.V. Tcherniga
Keyword(s):  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Scattering Of Light ◽  
Stimulated Brillouin

Brillouin scattering in (NH4)2ZnCl4 above room temperature

1987 ◽  
Vol 64 (5) ◽  
pp. 797-799 ◽  
Author(s):  
A.M. Gillet ◽  
Y. Luspin ◽  
G. Hauret
Keyword(s):  
Room Temperature ◽  
Brillouin Scattering

Brillouin scattering in sodium nitrite at room temperature

1972 ◽  
Vol 11 (1) ◽  
pp. 255-261 ◽  
Author(s):  
G. Hauret ◽  
J. P. Chapelle ◽  
L. Taurel
Keyword(s):  
Sodium Nitrite ◽  
Room Temperature ◽  
Brillouin Scattering

Brillouin scattering of light by spin waves in thin ferromagnetic films (invited)

1982 ◽  
Vol 53 (3) ◽  
pp. 2078-2083 ◽  
Author(s):  
P. Grünberg ◽  
M. G. Cottam ◽  
W. Vach ◽  
C. Mayr ◽  
R. E. Camley
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves ◽  
Scattering Of Light ◽  
Ferromagnetic Films

Room temperature elastic properties of Rh-based alloys studied by surface Brillouin scattering

2014 ◽  
Vol 116 (13) ◽  
pp. 133511 ◽  
Author(s):  
C. Sumanya ◽  
B. A. Mathe ◽  
J. D. Comins ◽  
A. G. Every ◽  
M. Osawa ◽  
...  
Keyword(s):  
Elastic Properties ◽  
Room Temperature ◽  
Brillouin Scattering
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