4.5 Article

EXAFS investigations on the pressure induced local structural changes of GeSe2 glass under different hydrostatic conditions

Related references

Note: Only part of the references are listed.
Article Materials Science, Multidisciplinary

Local Structure of Ga85:8In14:2 Eutectic Alloy and Its Pressure-Temperature Melting Line

Yimin Mijiti et al.

Summary: The structure of the Ga85.8In14.2 eutectic liquid alloy was investigated under different conditions, establishing a melting line and finding no significant structural modifications at local Ga sites within the studied pressure and temperature range.

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS (2022)

Article Geochemistry & Geophysics

Effect of temperature on the densification of silicate melts to lower Earth's mantle conditions

Marija Krstulovic et al.

Summary: The physical properties of silicate melts are influenced by external factors such as pressure, temperature, and chemistry. Structural rearrangements at atomic scale due to these factors can have profound effects on melt properties. Through X-ray absorption spectroscopy, the researchers studied the structural properties of haplo basaltic glasses and melts under high pressure and temperature conditions. The results show a continuous transformation in coordination between tetrahedral and octahedral structures, providing insights into melt behavior in the Earth's interior.

PHYSICS OF THE EARTH AND PLANETARY INTERIORS (2022)

Article Geochemistry & Geophysics

Structural changes in aluminosilicate glasses up to 164 GPa and the role of alkali, alkaline earth cations and alumina in the densification mechanism

Marija Krstulovic et al.

Summary: This study investigates the densification mechanism in multicomponent aluminosilicate glasses under high pressure, revealing a higher structural flexibility of these glasses compared to pure systems. The presence of low field-strength alkali and alkaline earth cations in deep Earth's melts significantly influences the densification mechanism of glasses. Results suggest that velocity anomalies at the Earth's core-mantle boundary are unlikely to be explained by non-buoyant melts formed through structural transformations, but likely by melts with considerable differences in chemical composition compared to surrounding crystalline phases.

CHEMICAL GEOLOGY (2021)

Article Geochemistry & Geophysics

Noble gas incorporation into silicate glasses: implications for planetary volatile storage

H. Yang et al.

Summary: High pressure, room temperature sound velocity measurements indicate that neon can enter the structure of silicate glasses and enhance their elastic strengths, while an ethanol-methanol mixture does not have the same effect. The incorporation of small molecules into silica and basalt glasses is influenced by the void size distribution of the glass and the size of the molecules. Pressure plays a key role in reducing the size of noble gases, thus increasing their solubilities in silicate melts and glasses.

GEOCHEMICAL PERSPECTIVES LETTERS (2021)

Article Materials Science, Multidisciplinary

Crystal and electronic structure of Co3O4 spinel under pressure probed by XANES and Raman spectroscopy

Yimin Mijiti et al.

Summary: The crystal and electronic structure of Co3O4 spinel were studied under high pressure using X-ray absorption near edge structure (XANES) and Raman scattering. Several transitions were observed, leading to the formation of a monoclinic P2(1)/c phase. Raman scattering analysis revealed additional transitions to orthorhombic Fddd and monoclinic C2/m phases at different pressure points. Combined experimental XANES and multiple scattering calculations provided evidence of a tetrahedral to octahedral coordination crossover at the Co2+ sites during the transition to the monoclinic P2(1)/c phase.

PHYSICAL REVIEW B (2021)

Article Chemistry, Physical

X-ray Absorption Spectroscopy investigations of disordered matter

Andrea Di Cicco

RADIATION PHYSICS AND CHEMISTRY (2020)

Article Instruments & Instrumentation

A new internally heated diamond anvil cell system for time-resolved optical and x-ray measurements

Yimin Mijiti et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2020)

Article Multidisciplinary Sciences

A comprehensive examination of the local- and long-range structure of Sb6O13 pyrochlore oxide

S. F. Mayer et al.

SCIENTIFIC REPORTS (2020)

Article Physics, Multidisciplinary

Structural Evolution of SiO2 Glass with Si Coordination Number Greater than 6

Yoshio Kono et al.

PHYSICAL REVIEW LETTERS (2020)

Article Materials Science, Multidisciplinary

Ge coordination in NaAlGe3O8 glass upon compression to 131 GPa

Marija Krstulovic et al.

PHYSICAL REVIEW B (2020)

Article Chemistry, Physical

Revisiting the Phase Transition of Magnetite under Pressure

K. Chen et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2019)

Article Physics, Condensed Matter

Valence State of Pb in Transition Metal Perovskites PbTMO3 (TM=Ti, Ni) Determined From X-Ray Absorption Near-Edge Spectroscopy

Kai Chen et al.

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS (2018)

Article Materials Science, Multidisciplinary

Collapse of itinerant ferromagnetism in CoS2 under pressure: An x-ray absorption spectroscopy study

Y. Mijiti et al.

PHYSICAL REVIEW B (2018)

Article Multidisciplinary Sciences

Beyond sixfold coordinated Si in SiO2 glass at ultrahigh pressures

Clemens Prescher et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2017)

Article Multidisciplinary Sciences

Ultrahigh-pressure polyamorphism in GeO2 glass with coordination number >6

Yoshio Kono et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2016)

Article Materials Science, Multidisciplinary

Structural evolution mechanisms of amorphous and liquid As2Se3 at high pressures

L. Properzi et al.

PHYSICAL REVIEW B (2016)

Article Multidisciplinary Sciences

Short-range order of compressed amorphous GeSe2

L. Properzi et al.

SCIENTIFIC REPORTS (2015)

Article Physics, Condensed Matter

X-ray absorption spectroscopy of GeO2 glass to 64 GPa

Xinguo Hong et al.

JOURNAL OF PHYSICS-CONDENSED MATTER (2014)

Article Materials Science, Multidisciplinary

Density-driven defect-mediated network collapse of GeSe2 glass

Kamil Wezka et al.

PHYSICAL REVIEW B (2014)

Article Instruments & Instrumentation

Glitch-free X-ray absorption spectrum under high pressure obtained using nano-polycrystalline diamond anvils

Naoki Ishimatsu et al.

JOURNAL OF SYNCHROTRON RADIATION (2012)

Article Physics, Multidisciplinary

Vitreous Silica Distends in Helium Gas: Acoustic Versus Static Compressibilities

Coralie Weigel et al.

PHYSICAL REVIEW LETTERS (2012)

Article Multidisciplinary Sciences

Effect of helium on structure and compression behavior of SiO2 glass

Guoyin Shen et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2011)

Article Multidisciplinary Sciences

Helium penetrates into silica glass and reduces its compressibility

Tomoko Sato et al.

NATURE COMMUNICATIONS (2011)

Article Materials Science, Multidisciplinary

High-pressure structural transformation of SiO2 glass up to 100 GPa

Tomoko Sato et al.

PHYSICAL REVIEW B (2010)

Article Materials Science, Multidisciplinary

Structural changes in amorphous GeS2 at high pressure

M. Vaccari et al.

PHYSICAL REVIEW B (2010)

Article Physics, Multidisciplinary

Spectroscopic Evidence for Ultrahigh-Pressure Polymorphism in SiO2 Glass

Motohiko Murakami et al.

PHYSICAL REVIEW LETTERS (2010)

Article Physics, Applied

Hydrostatic limits of 11 pressure transmitting media

S. Klotz et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2009)

Article Materials Science, Multidisciplinary

Interplay between morphology and metallization in amorphous-amorphous transitions

A. Di Cicco et al.

PHYSICAL REVIEW B (2008)

Article Physics, Multidisciplinary

Network rigidity in GeSe2 glass at high pressure

Sytle M. Antao et al.

PHYSICAL REVIEW LETTERS (2008)

Article Physics, Multidisciplinary

Sixfold-Coordinated Amorphous Polymorph of SiO2 under High Pressure

Tomoko Sato et al.

PHYSICAL REVIEW LETTERS (2008)

Article Materials Science, Multidisciplinary

High-pressure x-ray scattering and computer simulation studies of density-induced polyamorphism in silicon

Dominik Daisenberger et al.

PHYSICAL REVIEW B (2007)

Article Materials Science, Multidisciplinary

Equations of state of six metals above 94 GPa

A Dewaele et al.

PHYSICAL REVIEW B (2004)

Article Multidisciplinary Sciences

Materials - Ultrahard polycrystalline diamond from graphite

T Irifune et al.

NATURE (2003)

Article Materials Science, Multidisciplinary

Simulation of pressure-induced polyamorphism in a chalcogenide glass GeSe2

M Durandurdu et al.

PHYSICAL REVIEW B (2002)