skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Raman Spectroscopy of Dense H{sub 2} O and the Transition to Symmetric Hydrogen Bonds

Abstract

High-pressure Raman measurements of H{sub 2}O ice using synthetic diamond anvils reveal major changes associated with the transition to the nonmolecular, symmetric hydrogen-bonded state. At 60thinspthinspGPa the strongly pressure-dependent O-H symmetric stretching mode disappears, and the translational modes exhibit frequency and damping anomalies. With further increase in pressure, a single peak appears and becomes the dominant feature in the spectrum in the megabar range. The band is assigned to the predicted Raman-active O-O mode of the nonmolecular phase, consistent with the formation of cuprite-type ice X with static, symmetric hydrogen bonds. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
; ; ;  [1]
  1. Geophysical Laboratory and Center for High Pressure Research, Carnegie Institution of Washington, 5251 Broad Branch Road, N.W., Washington, D.C. 20015 (United States)
Publication Date:
OSTI Identifier:
686469
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; ICE; CHEMICAL BONDS; CRYSTAL STRUCTURE; PHASE TRANSFORMATIONS; PRESSURE DEPENDENCE; VERY HIGH PRESSURE; RAMAN SPECTRA; ELECTRONIC STRUCTURE; VIBRATIONAL STATES

Citation Formats

Goncharov, A.F., Struzhkin, V.V., Mao, H., and Hemley, R.J. Raman Spectroscopy of Dense H{sub 2} O and the Transition to Symmetric Hydrogen Bonds. United States: N. p., 1999. Web. doi:10.1103/PhysRevLett.83.1998.
Goncharov, A.F., Struzhkin, V.V., Mao, H., & Hemley, R.J. Raman Spectroscopy of Dense H{sub 2} O and the Transition to Symmetric Hydrogen Bonds. United States. doi:10.1103/PhysRevLett.83.1998.
Goncharov, A.F., Struzhkin, V.V., Mao, H., and Hemley, R.J. Wed . "Raman Spectroscopy of Dense H{sub 2} O and the Transition to Symmetric Hydrogen Bonds". United States. doi:10.1103/PhysRevLett.83.1998.
@article{osti_686469,
title = {Raman Spectroscopy of Dense H{sub 2} O and the Transition to Symmetric Hydrogen Bonds},
author = {Goncharov, A.F. and Struzhkin, V.V. and Mao, H. and Hemley, R.J.},
abstractNote = {High-pressure Raman measurements of H{sub 2}O ice using synthetic diamond anvils reveal major changes associated with the transition to the nonmolecular, symmetric hydrogen-bonded state. At 60thinspthinspGPa the strongly pressure-dependent O-H symmetric stretching mode disappears, and the translational modes exhibit frequency and damping anomalies. With further increase in pressure, a single peak appears and becomes the dominant feature in the spectrum in the megabar range. The band is assigned to the predicted Raman-active O-O mode of the nonmolecular phase, consistent with the formation of cuprite-type ice X with static, symmetric hydrogen bonds. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.83.1998},
journal = {Physical Review Letters},
number = 10,
volume = 83,
place = {United States},
year = {1999},
month = {9}
}