On optical phonons and elasticity in the hcp transition metals Fe, Ru and Re at high pressure

H. Olijnyk, A. P. Jephcoat, K. Refson

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The frequencies of the transverse-optical Γ-point phonon were determined for the hexagonal transit-ion metals Fe, Ru and Re by high-pressure Raman spectroscopy up to 60 GPa. Comparison is made with available theoretical frequency-data. The elastic shear constants C44, determined from the Raman frequencies, are consistent with ultrasonic low-pressure data and theoretical high-pressure data and do not support the high-pressure data obtained from lattice-strain experiments.

Original languageEnglish
Pages (from-to)504-510
Number of pages7
JournalEurophysics Letters
Volume53
Issue number4
DOIs
Publication statusPublished - Feb 11 2001
Externally publishedYes

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phonons
elastic properties
transition metals
transit
metal ions
low pressure
Raman spectroscopy
ultrasonics
shear

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

On optical phonons and elasticity in the hcp transition metals Fe, Ru and Re at high pressure. / Olijnyk, H.; Jephcoat, A. P.; Refson, K.

In: Europhysics Letters, Vol. 53, No. 4, 11.02.2001, p. 504-510.

Research output: Contribution to journalArticle

Olijnyk, H. ; Jephcoat, A. P. ; Refson, K. / On optical phonons and elasticity in the hcp transition metals Fe, Ru and Re at high pressure. In: Europhysics Letters. 2001 ; Vol. 53, No. 4. pp. 504-510.
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