High-pressure Brillouin scattering of amorphous BeH 2

Muhtar Ahart; Jeffery Yarger; Kristina M. Lantzky; Satoshi Nakano; Ho Kwang Mao; Russell J. Hemley

doi:10.1063/1.2138692

High-pressure Brillouin scattering of amorphous BeH ₂

Muhtar Ahart, Jeffery Yarger, Kristina M. Lantzky, Satoshi Nakano, Ho Kwang Mao, Russell J. Hemley

Molecular Sciences, School of (SMS)

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

29 Scopus citations

Abstract

High-pressure micro-Brillouin scattering is employed to investigate the pressure dependence of the sound velocity, refractive index, equation of state, and mechanical properties of amorphous BeH ₂. The refractive index n has been determined by using two scattering geometries (70° and 180°). The equation of state is deduced from the pressure dependences of the sound velocity. The bulk modulus is 14.2 (±3.0) GPa and its pressure derivative is 5.3 (±0.5). The polarizability is calculated from the refractive index and the density of the material. It increases with pressure while Poisson's ratio decreases with pressure.

Original language	English (US)
Article number	014502
Journal	Journal of Chemical Physics
Volume	124
Issue number	1
DOIs	https://doi.org/10.1063/1.2138692
State	Published - 2006

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "High-pressure Brillouin scattering of amorphous BeH 2 ",

abstract = "High-pressure micro-Brillouin scattering is employed to investigate the pressure dependence of the sound velocity, refractive index, equation of state, and mechanical properties of amorphous BeH 2. The refractive index n has been determined by using two scattering geometries (70° and 180°). The equation of state is deduced from the pressure dependences of the sound velocity. The bulk modulus is 14.2 (±3.0) GPa and its pressure derivative is 5.3 (±0.5). The polarizability is calculated from the refractive index and the density of the material. It increases with pressure while Poisson's ratio decreases with pressure.",

author = "Muhtar Ahart and Jeffery Yarger and Lantzky, {Kristina M.} and Satoshi Nakano and Mao, {Ho Kwang} and Hemley, {Russell J.}",

note = "Funding Information: This work is supported by the Carnegie/Department of Energy Alliance Center (CDAC; DE-FC03N00144), the National Science Foundation (NSF), and the Department of Defense, Army Research Office (DOD-ARO). ",

year = "2006",

doi = "10.1063/1.2138692",

language = "English (US)",

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T1 - High-pressure Brillouin scattering of amorphous BeH 2

AU - Ahart, Muhtar

AU - Yarger, Jeffery

AU - Lantzky, Kristina M.

AU - Nakano, Satoshi

AU - Mao, Ho Kwang

AU - Hemley, Russell J.

N1 - Funding Information: This work is supported by the Carnegie/Department of Energy Alliance Center (CDAC; DE-FC03N00144), the National Science Foundation (NSF), and the Department of Defense, Army Research Office (DOD-ARO).

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Y1 - 2006

N2 - High-pressure micro-Brillouin scattering is employed to investigate the pressure dependence of the sound velocity, refractive index, equation of state, and mechanical properties of amorphous BeH 2. The refractive index n has been determined by using two scattering geometries (70° and 180°). The equation of state is deduced from the pressure dependences of the sound velocity. The bulk modulus is 14.2 (±3.0) GPa and its pressure derivative is 5.3 (±0.5). The polarizability is calculated from the refractive index and the density of the material. It increases with pressure while Poisson's ratio decreases with pressure.

AB - High-pressure micro-Brillouin scattering is employed to investigate the pressure dependence of the sound velocity, refractive index, equation of state, and mechanical properties of amorphous BeH 2. The refractive index n has been determined by using two scattering geometries (70° and 180°). The equation of state is deduced from the pressure dependences of the sound velocity. The bulk modulus is 14.2 (±3.0) GPa and its pressure derivative is 5.3 (±0.5). The polarizability is calculated from the refractive index and the density of the material. It increases with pressure while Poisson's ratio decreases with pressure.

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High-pressure Brillouin scattering of amorphous BeH ₂

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