Ultrahigh-pressure transitions in solid hydrogen

During the past five years, major progress has been made in the experimental study of solid hydrogen at ultrahigh pressures as a result of developments in diamond-cell technology. Pressures at which metallization has been predicted to occur have been reached (250--300 Gigapascals). Detailed studies of the dynamic, structural, and electronic properties of dense hydrogen reveal a system unexpectedly rich in physical phenomena, exhibiting a variety of transitions at ultrahigh pressures. This colloquium explores the study of dense hydrogen as an archetypal problem in condensed-matter physics.

[1]  W. Vos,et al.  Sound Velocities in Dense Hydrogen and the Interior of Jupiter , 1994, Science.

[2]  Zha,et al.  Elasticity of hydrogen to 24 GPa from single-crystal Brillouin scattering and synchrotron x-ray diffraction. , 1993, Physical review. B, Condensed matter.

[3]  Mao,et al.  Low-frequency Raman spectroscopy of deuterium to megabar pressures at 77-295 K. , 1993, Physical review. B, Condensed matter.

[4]  Natoli,et al.  Molecular dynamics in dense hydrogen. , 1993, Physical review letters.

[5]  Barbee,et al.  Zero-point motion and the insulator-metal transition in solid molecular hydrogen. , 1993, Physical review letters.

[6]  Mao,et al.  Novel infrared vibron absorption in solid hydrogen at megabar pressures. , 1993, Physical review letters.

[7]  N. Ashcroft.  The metal-insulator transition: complexity in a simple system , 1993 .

[8]  Mao,et al.  Observation of a two-vibron bound-to-unbound transition in solid deuterium at high pressure. , 1993, Physical review letters.

[9]  Natoli,et al.  Crystal structure of atomic hydrogen. , 1993, Physical review letters.

[10]  H. Mao,et al.  Raman scattering of vibrational overtones in deuterium at high pressures , 1992 .

[11]  Jeon,et al.  Pressure dependence of the vibron modes in solid hydrogen and deuterium. , 1992, Physical review. B, Condensed matter.

[12]  Williams,et al.  Synchrotron infrared spectroscopy at megabar pressures: Vibrational dynamics of hydrogen to 180 GPa. , 1992, Physical review letters.

[13]  Loubeyre,et al.  Raman measurements of the vibrational properties of H2 as a guest molecule in dense helium, neon, argon, and deuterium systems up to 40 GPa. , 1992, Physical review. B, Condensed matter.

[14]  W. J. Nellis,et al.  Electronic energy gap of molecular hydrogen from electrical conductivity measurements at high shock pressures. , 1992, Physical review letters.

[15]  Evans,et al.  Dielectric properties of solid molecular hydrogen at high pressure. , 1992, Physical review. B, Condensed matter.

[16]  Daniels,et al.  Vibrational Raman spectra of hydrogen and deuterium mixtures at high pressures. , 1992, Physical review. A, Atomic, molecular, and optical physics.

[17]  Nakamura,et al.  Stable phases of solid hydrogen at megabar pressures and at zero temperature. , 1992, Physical review letters.

[18]  Mao,et al.  Stability of ruby in solid hydrogen at megabar pressures. , 1992, Physical review. B, Condensed matter.

[19]  H. Mao,et al.  Anomalous low-frequency excitations in diamond-cell studies of hydrogen at megabar pressures , 1992 .

[20]  Broughton,et al.  Onset of metallization and related transitions in solid hydrogen. , 1991, Physical review letters.

[21]  H. Mao,et al.  Optical transitions in diamond at ultrahigh pressures , 1991, Nature.

[22]  Ashcroft,et al.  Generalized Coulomb pairing in the condensed state. , 1991, Physical review letters.

[23]  H. Mao,et al.  High-pressure dielectric measurements of solid hydrogen to 170 GPa , 1991, Nature.

[24]  Mao,et al.  Optical absorption measurements of hydrogen at megabar pressures. , 1991, Physical review. B, Condensed matter.

[25]  Ruoff,et al.  Hydrogen reduction of ruby at high pressure: Implication for claims of metallic hydrogen. , 1991, Physical review letters.

[26]  Evans,et al.  Absorption and reflectance in hydrogen up to 230 GPa: Implications for metallization. , 1991, Physical review letters.

[27]  Louie,et al.  Metallization of solid hydrogen at megabar pressures: A first-principles quasiparticle study. , 1991, Physical review letters.

[28]  Mao,et al.  Low-frequency vibrational dynamics and structure of hydrogen at megabar pressures. , 1990, Physical review letters.

[29]  Marvin L. Cohen,et al.  Band Gap Closure and Metallization of Molecular Solid Hydrogen , 1990 .

[30]  Zha,et al.  Equation of state of solid hydrogen and deuterium from single-crystal x-ray diffraction to 26.5 GPa. , 1990, Physical review. B, Condensed matter.

[31]  H. Mao,et al.  Critical Behavior in the Hydrogen Insulator-Metal Transition , 1990, Science.

[32]  Mao,et al.  Infrared reflectance measurements of the insulator-metal transition in solid hydrogen. , 1990, Physical review letters.

[33]  Ashcroft.  Pairing instabilities in dense hydrogen. , 1990, Physical review. B, Condensed matter.

[34]  K. Goettel,et al.  Orientational phase transitions in hydrogen at megabar pressures. , 1990, Physical review letters.

[35]  Lee,et al.  Molecular motion in solid H2 at high pressures. , 1989, Physical review. B, Condensed matter.

[36]  Lorenzana,et al.  Evidence for a structural phase transition in solid hydrogen at megabar pressures. , 1989, Physical review letters.

[37]  Mao,et al.  Isotope effects in dense solid hydrogen: Phase transition in deuterium at 190+/-20 GPa. , 1989, Physical review letters.

[38]  T. W. Barbee,et al.  First-principles prediction of high-temperature superconductivity in metallic hydrogen , 1989, Nature.

[39]  H. K. M. A. R. J. Hemley.  Optical Studies of Hydrogen Above 200 Gigapascals: Evidence for Metallization by Band Overlap , 1989, Science.

[40]  Martins,et al.  Theory of high-pressure phases of hydrogen. , 1989, Physical review letters.

[41]  Mao,et al.  Phase transition in solid molecular hydrogen at ultrahigh pressures. , 1988, Physical review letters.

[42]  Syassen,et al.  Raman study of the pressure-induced neutral-to-ionic transition in tetrathiafulvalene chloranil. , 1988, Physical review. B, Condensed matter.

[43]  Silvera,et al.  Pressure dependence of the optical-absorption edge of solid hydrogen in a diamond-anvil cell. , 1988, Physical review. B, Condensed matter.

[44]  H. Mao,et al.  Synchrotron X-ray Diffraction Measurements of Single-Crystal Hydrogen to 26.5 Gigapascals , 1988, Science.

[45]  Silvera,et al.  Equation of state of solid molecular H2 and D2 at 5 K. , 1988, Physical review. B, Condensed matter.

[46]  Maggs,et al.  Nontransferable van der Waals potentials: Insulators at high pressure. , 1987, Physical review. B, Condensed matter.

[47]  Bell,et al.  Ultrahigh pressures: Optical observations and Raman measurements of hydrogen and deuterium to 1.47 Mbar. , 1985, Physical review letters.

[48]  W. Nellis,et al.  Equation‐of‐state data for molecular hydrogen and deuterium at shock pressures in the range 2–76 GPa (20–760 kbar)a) , 1983 .

[49]  R. J. Wijngaarden,et al.  Pressure dependence of the optical phonon in solid hydrogen and deuterium up to 230 kbar , 1983 .

[50]  A. Lagendijk,et al.  Pressure dependence of the vibron in solid hydrogen and deuterium up to 600 kbar , 1982 .

[51]  H. Mao,et al.  Brillouin Measurements of Solid n-H 2 and n-D 2 to 200 kbar at Room Temperature , 1981 .

[52]  R. J. Wijngaarden,et al.  New Low-Temperature Phase of Molecular Deuterium at Ultrahigh Pressure , 1981 .

[53]  N. Ashcroft,et al.  Two-component Fermi-liquid theory: Equilibrium properties of liquid metallic hydrogen , 1981 .

[54]  Y. Shen,et al.  Anharmonicity, phonon localization, two-phonon bound states, and vibrational spectra , 1981 .

[55]  H. Mao,et al.  Electrical resistivity measurements of conductors in the diamond‐window, high‐pressure cell , 1981 .

[56]  R. L. Mills,et al.  Procedure for loading diamond cells with high‐pressure gas , 1980 .

[57]  I. Silvera.  The solid molecular hydrogens in the condensed phase: Fundamentals and static properties , 1980 .

[58]  H. Mao,et al.  Raman measurements of hydrogen in the pressure range 0.2-630 kbar at room temperature , 1980 .

[59]  I. Silvera,et al.  Density dependence of the Raman-active optical phonon in the hcp phase of solid H2 and D2 , 1979 .

[60]  H. Mao,et al.  Observations of Hydrogen at Room Temperature (25�C) and High Pressure (to 500 Kilobars) , 1979, Science.

[61]  Victor V. Goldman,et al.  The isotropic intermolecular potential for H2 and D2 in the solid and gas phases , 1978 .

[62]  M. Devoret,et al.  Evidence for quadrupolar glass phases in solid hydrogen at reduced ortho concentrations , 1978 .

[63]  N. Ashcroft,et al.  Combined representation method for use in band-structure calculations - Application to highly compressed hydrogen , 1977 .

[64]  F. Harris,et al.  Exact-exchange crystal Hartree--Fock calculations of molecular and metallic hydrogen and their transitions , 1975 .

[65]  I. Zucker,et al.  Higher order multipole three-body van der Waals interactions and stability of rare gas solids , 1971 .

[66]  N. Ashcroft,et al.  METALLIC HYDROGEN: A HIGH-TEMPERATURE SUPERCONDUCTOR. , 1968 .

[67]  H. G. Drickamer,et al.  Effect of Pressure on the Resistance of Iodine and Selenium , 1961 .

[68]  P. Anderson.  Absence of Diffusion in Certain Random Lattices , 1958 .

[69]  E. Wigner,et al.  On the Possibility of a Metallic Modification of Hydrogen , 1935 .

[70]  R. Fowler.  On dense matter , 1926 .

[71]  A. Jayaraman,et al.  Diamond anvil cell and high-pressure physical investigations , 1983 .

[72]  A. May,et al.  Motional Narrowing and Other Effects in the Q Branch of HD , 1973 .

[73]  R. L. Mills,et al.  CRYSTAL-STRUCTURE CHANGES IN HYDROGEN AND DEUTERIUM. , 1968 .