Search Results - "BARON, Alfred Q. R"
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1
Equation of State of Liquid Iron under Extreme Conditions
Published in Physical review letters (24-04-2020)“…The density of liquid iron has been determined up to 116 GPa and 4350 K via static compression experiments following an innovative analysis of diffuse…”
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2
Sound velocity of hexagonal close-packed iron to the Earth’s inner core pressure
Published in Nature communications (25-11-2022)“…Here we determine the compressional and shear wave velocities ( v p and v s ) of hexagonal close-packed iron, a candidate for the main constituent of the…”
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3
Two-Component Dynamics and the Liquidlike to Gaslike Crossover in Supercritical Water
Published in Physical review letters (18-12-2020)“…Molecular-scale dynamics in sub- to supercritical water is studied with inelastic x-ray scattering and molecular dynamics simulations. The obtained…”
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4
Universal Two-Component Dynamics in Supercritical Fluids
Published in The journal of physical chemistry. B (16-12-2021)“…Despite the technological importance of supercritical fluids, controversy remains about the details of their microscopic dynamics. In this work, we study four…”
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5
Practical measurement of the energy resolution for meV‐resolved inelastic X‐ray scattering
Published in Journal of synchrotron radiation (01-05-2021)“…Several different ways of measuring the energy resolution for meV‐resolved inelastic X‐ray scattering (IXS) are compared: using scattering from poly(methyl…”
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Interaction of Acoustic and Quasi-Elastic Modes in Liquid Water on Nanometer Length Scales
Published in Journal of the Physical Society of Japan (15-08-2021)“…We investigate the presence of an acoustic-quasi-elastic interaction contribution in the IXS spectra of liquid water at 301 K using inelastic x-ray scattering…”
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7
Temperature‐gradient analyzers for non‐resonant inelastic X‐ray scattering
Published in Journal of synchrotron radiation (01-05-2021)“…The detailed fabrication and performance of the temperature‐gradient analyzers that were simulated by Ishikawa & Baron [(2010). J. Synchrotron Rad.17, 12–24]…”
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8
Carbon-depleted outer core revealed by sound velocity measurements of liquid iron–carbon alloy
Published in Nature communications (24-11-2015)“…The relative abundance of light elements in the Earth’s core has long been controversial. Recently, the presence of carbon in the core has been emphasized,…”
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9
Structural changes across thermodynamic maxima in supercooled liquid tellurium: A water-like scenario
Published in Proceedings of the National Academy of Sciences - PNAS (12-07-2022)“…Liquid polymorphism is an intriguing phenomenon that has been found in a few single-component systems, the most famous being water. By supercooling liquid Te…”
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10
Lattice dynamics of the Zn-Mg-Sc icosahedral quasicrystal and its Zn-Sc periodic 1/1 approximant
Published in Nature materials (01-12-2007)“…Quasicrystals are long-range-ordered materials that lack translational invariance, so the study of their physical properties remains a challenging problem…”
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Lattice Dynamics of LaFeAsO1-xFx and PrFeAsO1-y via Inelastic X-Ray Scattering and First-Principles Calculation
Published in Journal of the Physical Society of Japan (01-10-2008)“…The lattice dynamics of LaFeAsO1-xFx (x=0,0.1) and PrFeAsO1-y (y∼0.1) are investigated using inelastic x-ray scattering and ab-initio calculation. Measurements…”
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12
Identifying Water–Anion Correlated Motion in Aqueous Solutions through Van Hove Functions
Published in The journal of physical chemistry letters (21-11-2019)“…Electrolyte solutions are ubiquitous in materials in daily use and in biological systems. However, the understanding of their molecular and ionic dynamics,…”
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13
Sound Velocity of Liquid Fe–P at High Pressure
Published in physica status solidi (b) (01-11-2020)“…The longitudinal sound wave (P‐wave) velocity of liquid Fe75P25 alloy is determined up to 60 GPa using inelastic X‐ray scattering with laser‐heated diamond…”
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14
Asymmetrical bonding in liquid Bi disentangled by inelastic X-ray scattering
Published in EPJ Web of Conferences (01-01-2017)“…The structure of liquid Bi has been debated in relationship with the Peierls distortion, as crystalline Bi takes A7 structure. A recent ab initio molec- ular…”
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Journal Article Conference Proceeding -
15
Lattice dynamics calculations for ferropericlase with internally consistent LDA+U method
Published in Journal of Geophysical Research: Solid Earth (01-12-2012)“…Vibrational densities of states and phonon dispersion relations for Mg0.875Fe0.125O ferropericlase in the high‐ and low‐spin (HS and LS) states were calculated…”
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16
Density deficit of Earth’s core revealed by a multimegabar primary pressure scale
Published in Science advances (08-09-2023)“…An accurate pressure scale is a fundamental requirement to understand planetary interiors. Here, we establish a primary pressure scale extending to the…”
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17
Dispersion relations of the acoustic modes in divalent liquid metals
Published in EPJ Web of Conferences (01-01-2017)“…Collective dynamics in liquid Ca and liquid Cd was studied by inelastic x-ray scattering (IXS). Using our experimental technique to prepare proper sample cells…”
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Journal Article Conference Proceeding -
18
Sound Speed in Glassy AsxSe1−x (x = 0.4, 0.5, and 0.6) by Inelastic X‐Ray Scattering
Published in physica status solidi (b) (01-11-2020)“…Inelastic X‐ray scattering (IXS) measurements are carried out for glassy As0.4Se0.6, As0.5Se0.5, and As0.6Se0.4 to investigate atomic dynamics in the glasses…”
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19
Seeing real-space dynamics of liquid water through inelastic x-ray scattering
Published in Science advances (01-12-2017)“…Water is ubiquitous on earth, but we know little about the real-space motion of molecules in liquid water. We demonstrate that high-resolution inelastic x-ray…”
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20
Synchrotron X-ray Study of Lattice Vibrations in CdCr2O4
Published in Journal of the Physical Society of Japan (01-07-2011)“…Using inelastic x-ray scattering we have investigated lattice vibrations in a geometric frustrated system CdCr 2 O 4 that upon cooling undergoes a spin-Peierls…”
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