Tag Archive for 'Diamond anvil cell'

Kim et al. suggest that chemical exchange between the core and mantle over gigayears of deep transport of water may have contributed to the formation of the putative E’ layer. Image credit: Yonsei University.

Surface Water Penetrates Deep into Earth, New Research Suggests

Nov 14, 2023 by News Staff

A few decades ago, seismologists identified a thin layer with a lower velocity in Earth’s metallic liquid core. The origin of this layer, known as the...

Experimentally determined crystal structure of the K9N56 compound at 61 GPa. Image credit: Laniel et al., doi: 10.1038/s41557-023-01148-7.

Chemists Form First Known Compound Containing Aromatic Nitrogen Rings

Mar 7, 2023 by News Staff

A team of chemists from Germany, Sweden, the United Kingdom and China has synthesized the potassium nitrogen compound K9N56 — composed of 520 atoms...

The iron-carbon alloy reacted with water at high pressure and high temperature conditions related to the Earth’s deep mantle in a diamond-anvil cell. Image credit: Ko et al., doi: 10.1029/2022GL098271.

‘Diamond Factory’ May Have Existed in Earth’s Interior for Billions of Years: Study

Aug 31, 2022 by News Staff

Carbon plays a vital role in geological processes occurring in the Earth’s interior. While most carbon on our planet exists in its core, whether or not...

Phase diagram of ice: dark blue-, green-, and red-shaded regions denote ice VII, VIIt and X, respectively, and projected phase boundaries separating high-pressure ice phases from our work are shown as solid black lines; ice X phase boundaries connect the measured transition at 30.9 GPa and 300 K to the inflection point in the melt curve, which have been associated with the transition from molecular to ionic fluid; dashed lines show measured melting curves; superionic boundary is highlighted. Image credit: Grande et al., doi: 10.1103/PhysRevB.105.104109.

New Form of Ice Discovered: Ice VIIt

Mar 21, 2022 by News Staff

Physicists have observed the transition from a previously known cubic phase, ice VII, to the newly-discovered intermediate, and tetragonal, phase, ice...

An artist’s impression of the ultra-short-period sub-Neptune exoplanet TOI-1634b. Image credit: Sci-News.com.

Helium Rain is Possible inside Jovian Planets, New Experiments Suggest

May 27, 2021 by News Staff

Jupiter, Saturn and numerous giant exoplanets discovered to date consist mostly of hydrogen and helium. In 1977, planetary scientists predicted the existence...

This image shows the sample chamber inside of a diamond anvil cell, looking axially through the top diamond. The sample originally exists of carbon and sulfur, shown as a black powder, sitting inside a hydrogen-rich environment. The sample is at 4 GPa and is illuminated by 10 mW of 532 nm of laser light to initiate and take to completion the photochemical reaction to produce a Van der Waals solid. Image credit: Snider et al., doi: 10.1038/s41586-020-2801-z.

Scientists Create First Room-Temperature Superconductor

Oct 15, 2020 by News Staff

A team of physicists and materials scientists from the University of Rochester, the University of Nevada Las Vegas and Intel Corporation has created material...

Carbide Planets May Be Made Of Silica and Diamonds

Sep 11, 2020 by News Staff

Extrasolar planets hosted by stars with sufficiently high carbon-to-oxygen ratios could be made of diamonds and silica, according to new research by Arizona...

Earth’s internal structure: dense solid metallic core, viscous metallic outer core, mantle and silicate based crust. Image credit: NASA.

Earth’s Inner Core is Around 1.15 Billion Years Old, Study Shows

Aug 26, 2020 by News Staff

The inner core of our planet is between 1 and 1.3 billion years old, according to new research led by the University of Texas at Austin and Carnegie Institution...