Spectroscopic studies of the vibrational and electronic properties of solid hydrogen to 285 GPa
Author(s) -
Alexander F. Goncharov,
Eugene Gregoryanz,
Russell J. Hemley,
Hokwang Mao
Publication year - 2001
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.201528198
Subject(s) - solid hydrogen , raman spectroscopy , raman scattering , phonon , hydrogen , spectral line , infrared , materials science , phase transition , infrared spectroscopy , hydrogen molecule , metal , phase (matter) , absorption spectroscopy , chemistry , absorption (acoustics) , molecular solid , molecular physics , molecule , condensed matter physics , optics , physics , organic chemistry , astronomy , metallurgy , composite material
We report Raman scattering and visible to near-infrared absorption spectra of solid hydrogen under static pressure up to 285 GPa between 20 and 140 K. We obtain pressure dependences of vibron and phonon modes consistent with results previously determined to lower pressures. The results indicate the stability of the ordered molecular phase III to the highest pressure reached and provide constraints on the insulator-to-metal transition pressure.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom