High-pressure Raman spectroscopy of diamond anvils to 250GPa: Method for pressure determination in the multimegabar pressure range

2004/09/27 by Yuichi Akahama, Haruki Kawamura · 329 citations
Chemistry · Earth and Planetary Sciences · Materials Science · #Analytical Chemistry (journal) #Chemistry #Composite material #Diamond #Diamond and Carbon-based Materials Research #Diamond anvil cell #Enhanced Data Rates for GSM Evolution #Geological and Geochemical Analysis #High pressure #High-pressure geophysics and materials #Materials science #Molecular physics #Optics #Physics #Pressure measurement #Raman spectroscopy #Range (aeronautics) #Thermodynamics

paper · doi:10.1063/1.1778482

published in Journal of Applied Physics 96(7), 3748-3751 (American Institute of Physics)

openalex publication_date 2004/09/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

The first-order Raman spectra of diamond anvils used in a gasketed high-pressure cell have been measured at pressure up to 250GPa. The high-frequency edge of the Raman band, which corresponds to the Raman shift of the culet face, is represented by a function of pressure in the sample chamber up to 250GPa. The dependence is almost independent on loading conditions. The application of the pressure dependence for pressure determination up to the multimegabars pressure region is proposed.

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