Results 11 to 20 of about 2,542 (183)

Pressure‐Induced sp 2 ‐sp 3 Transitions in Carbon‐Bearing Phases

open access: yesGeophysical Monograph Series, Page 1-9., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Sergey S. Lobanov   +1 more
wiley  

+14 more sources

In-situ abiogenic methane synthesis from diamond and graphite under geologically relevant conditions

open access: yesNature Communications, 2021
Using diamond anvil cell and high temperature experiments, this work proves that the interaction between deep hydrogen rich fluids and reduced carbon minerals may be an efficient mechanism for producing abiotic hydrocarbons at the upper mantle’s ...
Miriam Peña-Alvarez   +6 more
doaj   +1 more source

Calibration of Manganin pressure gauge for diamond-anvil cells [PDF]

open access: yesReview of Scientific Instruments, 2021
Pressure calibration for most diamond-anvil cell (DAC) experiments is mainly based on the ruby scale, which is key to implementing this powerful tool for high-pressure study. However, the ruby scale can often hardly be used for programmably controlled DAC devices, especially the piezoelectric-driving cells, where a continuous pressure calibration is ...
Jian Chen   +6 more
openaire   +3 more sources

Simultaneous imaging and diffraction in the dynamic diamond anvil cell

open access: yesReview of Scientific Instruments, 2022
The ability to visualize a sample undergoing a pressure-induced phase transition allows for the determination of kinetic parameters, such as the nucleation and growth rates of the high-pressure phase. For samples that are opaque to visible light (such as metallic systems), it is necessary to rely on x-ray imaging methods for sample visualization. Here,
R. J. Husband   +9 more
openaire   +3 more sources

Interlayer Coupling and Pressure Engineering in Bilayer MoS2

open access: yesCrystals, 2022
Controlling the interlayer coupling by tuning lattice parameters through pressure engineering is an important route for tailoring the optoelectronic properties of two-dimensional materials.
Wei Qiao   +9 more
doaj   +1 more source

Combined synchrotron x-ray diffraction and NV diamond magnetic microscopy measurements at high pressure

open access: yesNew Journal of Physics, 2020
We report the possibility to simultaneously perform wide-field nitrogen-vacancy (NV) diamond magnetic microscopy and synchrotron x-ray diffraction measurements at high pressure.
Loïc Toraille   +13 more
doaj   +1 more source

Experimental charge density of grossular under pressure – a feasibility study

open access: yesIUCrJ, 2020
X-ray diffraction studies of crystals under pressure and quantitative experimental charge density analysis are among the most demanding types of crystallographic research.
Roman Gajda   +6 more
doaj   +1 more source

Nanocrystalline diamond micro-anvil grown on single crystal diamond as a generator of ultra-high pressures

open access: yesAIP Advances, 2016
By combining mask-less lithography and chemical vapor deposition (CVD) techniques, a novel two-stage diamond anvil has been fabricated. A nanocrystalline diamond (NCD) micro-anvil 30 μm in diameter was grown at the center of a [100]-oriented, diamond ...
Gopi K. Samudrala   +5 more
doaj   +1 more source

X-ray free electron laser heating of water and gold at high static pressure

open access: yesCommunications Materials, 2021
The study of water at high pressure and temperature is essential for understanding planetary interiors but is hampered by the high reactivity of water at extreme conditions.
Rachel J. Husband   +18 more
doaj   +1 more source

Neutron diffraction in diamond anvil cells [PDF]

open access: yesActa Crystallographica Section A Foundations and Advances, 2014
Neutron diffraction provides many unique advantages for structural studies of materials under extremes of pressure. In addition to the famous sensitivity to light atom positions, neutrons are sensitive to long-range magnetic order and have an extremely high spatial resolution. However, a major downside of neutron techniques, that is keenly felt in high
Malcolm Guthrie   +5 more
openaire   +1 more source

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