Spectroscopic studies of the vibrational and electronic properties of solid hydrogen to 285 GPa

AF Goncharov; E Gregoryanz; RJ Hemley; HK Mao

Spectroscopic studies of the vibrational and electronic properties of solid hydrogen to 285 GPa

AF Goncharov, E Gregoryanz, RJ Hemley, HK Mao

School of Physics and Astronomy

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

Abstract

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.

Original language	English
Pages (from-to)	14234-14237
Number of pages	4
Journal	Proceedings of the National Academy of Sciences (PNAS)
Volume	98
Issue number	25
Publication status	Published - 4 Dec 2001

Keywords / Materials (for Non-textual outputs)

SYNCHROTRON INFRARED-SPECTROSCOPY
INSULATOR-METAL TRANSITION
HIGH-PRESSURE
MEGABAR PRESSURES
DENSE HYDROGEN
ULTRAHIGH PRESSURES
MOLECULAR-HYDROGEN
PHASE-TRANSITION
DIAMOND
METALLIZATION

Cite this

@article{4ae24bdfeced431ab0db8458dbd96468,

title = "Spectroscopic studies of the vibrational and electronic properties of solid hydrogen to 285 GPa",

abstract = "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.",

keywords = "SYNCHROTRON INFRARED-SPECTROSCOPY, INSULATOR-METAL TRANSITION, HIGH-PRESSURE, MEGABAR PRESSURES, DENSE HYDROGEN, ULTRAHIGH PRESSURES, MOLECULAR-HYDROGEN, PHASE-TRANSITION, DIAMOND, METALLIZATION",

author = "AF Goncharov and E Gregoryanz and RJ Hemley and HK Mao",

year = "2001",

month = dec,

day = "4",

language = "English",

volume = "98",

pages = "14234--14237",

journal = "Proceedings of the National Academy of Sciences (PNAS)",

issn = "0027-8424",

publisher = "National Academy of Sciences",

number = "25",

}

TY - JOUR

T1 - Spectroscopic studies of the vibrational and electronic properties of solid hydrogen to 285 GPa

AU - Goncharov, AF

AU - Gregoryanz, E

AU - Hemley, RJ

AU - Mao, HK

PY - 2001/12/4

Y1 - 2001/12/4

N2 - 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.

AB - 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.

KW - SYNCHROTRON INFRARED-SPECTROSCOPY

KW - INSULATOR-METAL TRANSITION

KW - HIGH-PRESSURE

KW - MEGABAR PRESSURES

KW - DENSE HYDROGEN

KW - ULTRAHIGH PRESSURES

KW - MOLECULAR-HYDROGEN

KW - PHASE-TRANSITION

KW - DIAMOND

KW - METALLIZATION

M3 - Article

SN - 0027-8424

VL - 98

SP - 14234

EP - 14237

JO - Proceedings of the National Academy of Sciences (PNAS)

JF - Proceedings of the National Academy of Sciences (PNAS)

IS - 25

ER -

Spectroscopic studies of the vibrational and electronic properties of solid hydrogen to 285 GPa

Abstract

Keywords / Materials (for Non-textual outputs)

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