High-pressure Brillouin scattering and elastic constants of single-crystal hydrogen to 24 GPa

1994 ◽  
Author(s):  
Chang-sheng Zha ◽  
Thomas S. Duffy ◽  
Ho-kwang Mao ◽  
Russell J. Hemley
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Elastic Constants ◽  
Brillouin Scattering

High-pressure Brillouin scattering of the single-crystal PbSc_{1/2}Ta_{1/2}O_{3} relaxor ferroelectric

2013 ◽  
Vol 87 (18) ◽  
Author(s):  
H. Marquardt ◽  
N. Waeselmann ◽  
M. Wehber ◽  
R. J. Angel ◽  
M. Gospodinov ◽  
...  
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Brillouin Scattering ◽  
Relaxor Ferroelectric

Single-crystal elasticity of the rhodochrosite at high pressure by Brillouin scattering spectroscopy

2018 ◽  
Vol 38 (4) ◽  
pp. 396-405 ◽  
Author(s):  
Chaoshuai Zhao ◽  
Heping Li ◽  
Pofei Chen ◽  
Jianjun Jiang ◽  
Wen Liang
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Brillouin Scattering

Determination of Elastic Constants in Single Crystal Bi 12 SiO 20 by Brillouin Scattering Spectroscopy

2002 ◽  
Vol 272 (1) ◽  
pp. 125-130
Author(s):  
Y. S. Yu ◽  
B. C. Shin ◽  
S. W. Jang ◽  
S. C. Kim
Keyword(s):  
Single Crystal ◽  
Elastic Constants ◽  
Brillouin Scattering

High-Pressure Third-Order Elastic Constants of MgO Single Crystal: First-Principles Investigation

2019 ◽  
Vol 74 (5) ◽  
pp. 447-456
Author(s):  
Jianbing Gu ◽  
Chenju Wang ◽  
Bin Sun ◽  
Weiwei Zhang ◽  
Dandan Liu
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Total Energy ◽  
Elastic Constants ◽  
First Principles ◽  
Predictive Ability ◽  
Theoretical Method ◽  
Third Order ◽  
Third Order Elastic Constants ◽  
First Time

AbstractHigh-pressure third-order elastic constants of materials have rarely been investigated experimentally and theoretically to date, so the predictive ability of the method of the volume-conserving, homogeneous deformations based on the first-principles total-energy calculations is tested for the first time in this work. Using this approach, the high-pressure third-order elastic constants ${C_{111}}-3{C_{112}}+2{C_{123}}$, ${C_{111}}/2+3{C_{112}}+{C_{123}}$, ${C_{144}}-{C_{155}}$, and C456 of the MgO single crystal are obtained successfully. Meanwhile, the reliability of this method is also verified by comparing the calculated structural properties and high-pressure second-order elastic constants of the MgO single crystal with the available experimental results and other theoretical predications. Results not only indicate the accuracy of our calculations but also reveal the feasibility of the present theoretical method. It is hoped that the present theoretical method and predictions on the high-pressure third-order elastic constants of the MgO single crystal would serve as a valuable guidance or reference for further related investigations.

scholarly journals Single‐Crystal Elasticity of High‐Pressure Ice up to 98 GPa by Brillouin Scattering

2021 ◽  
Vol 48 (8) ◽  
Author(s):  
Weigang Shi ◽  
Ningyu Sun ◽  
Xinyang Li ◽  
Zhu Mao ◽  
Jin Liu ◽  
...  
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Brillouin Scattering

scholarly journals Elastic properties of single crystal hydrogen sulfide: A Brillouin scattering study under high pressure-temperature

2018 ◽  
Vol 124 (12) ◽  
pp. 125901 ◽  
Author(s):  
Di Zhou ◽  
Xiaoli Huang ◽  
Xin Li ◽  
Hongyu Yu ◽  
Fangfei Li ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Sulfide ◽  
Single Crystal ◽  
Elastic Properties ◽  
Brillouin Scattering ◽  
Scattering Study

Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate

2020 ◽  
Author(s):  
Keishiro Yamashita ◽  
Kazuki Komatsu ◽  
Hiroyuki Kagi
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Crystal Growth ◽  
Single Crystal ◽  
Room Temperature ◽  
Growth Technique ◽  
Salt Hydrate ◽  
X Ray

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl<sub>2</sub>·7H<sub>2</sub>O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.

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