High-pressure vibrational studies of HCP Metals by Raman spectroscopy

H. Olijnyk; A. P. Jephcoat

doi:10.1080/08957950211365

High-pressure vibrational studies of HCP Metals by Raman spectroscopy

H. Olijnyk, A. P. Jephcoat

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

7 Citations (Scopus)

Abstract

The pressure response of Raman phonons, determined for several hep metals, includes positive pressure shifts as well as anomalies like mode softening in connection with phase transitions. It is shown that the phonon frequencies and their pressure dependences are related to macroscopic elastic parameters. More general, these results show that the measurement of Raman-active phonons in metals provides a direct probe of bonding, and agreement with theoretical models gives additional confidence in ab initio techniques.

Original language	English
Pages (from-to)	43-45
Number of pages	3
Journal	High Pressure Research
Volume	22
Issue number	1
DOIs	https://doi.org/10.1080/08957950211365
Publication status	Published - Apr 2002

Keywords

Elasticity
High-pressure
Metals
Phase transitions
Phonons

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/08957950211365

Cite this

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title = "High-pressure vibrational studies of HCP Metals by Raman spectroscopy",

abstract = "The pressure response of Raman phonons, determined for several hep metals, includes positive pressure shifts as well as anomalies like mode softening in connection with phase transitions. It is shown that the phonon frequencies and their pressure dependences are related to macroscopic elastic parameters. More general, these results show that the measurement of Raman-active phonons in metals provides a direct probe of bonding, and agreement with theoretical models gives additional confidence in ab initio techniques.",

keywords = "Elasticity, High-pressure, Metals, Phase transitions, Phonons",

author = "H. Olijnyk and Jephcoat, {A. P.}",

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AU - Jephcoat, A. P.

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PY - 2002/4

Y1 - 2002/4

N2 - The pressure response of Raman phonons, determined for several hep metals, includes positive pressure shifts as well as anomalies like mode softening in connection with phase transitions. It is shown that the phonon frequencies and their pressure dependences are related to macroscopic elastic parameters. More general, these results show that the measurement of Raman-active phonons in metals provides a direct probe of bonding, and agreement with theoretical models gives additional confidence in ab initio techniques.

AB - The pressure response of Raman phonons, determined for several hep metals, includes positive pressure shifts as well as anomalies like mode softening in connection with phase transitions. It is shown that the phonon frequencies and their pressure dependences are related to macroscopic elastic parameters. More general, these results show that the measurement of Raman-active phonons in metals provides a direct probe of bonding, and agreement with theoretical models gives additional confidence in ab initio techniques.

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KW - High-pressure

KW - Metals

KW - Phase transitions

KW - Phonons

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ER -

High-pressure vibrational studies of HCP Metals by Raman spectroscopy

Abstract

Keywords

ASJC Scopus subject areas

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