High Pressure, Materials, Matter at Extreme States

The Geophysical Laboratory's weekly seminar series continues with Ross Hrubiak, who comes from our HPCAT location. He will present, "Experimental evidence of a body centered cubic iron at the Earth’s core condition."

High Pressure, Materials

Washington, DC— Reservoirs of oxygen-rich iron between the Earth’s core and mantle could have played a major role in Earth’s history, including the breakup of supercontinents, drastic changes in Earth’s atmospheric makeup, and the creation of life, according to recent work from an international research team published in National Science Review.

High Pressure

Washington, DC— New research by GL's Dave Mao on oxygen and iron chemistry under the extreme conditions found deep inside the Earth could explain a longstanding seismic mystery called ultralow velocity zones. Published in Nature, the findings could have far-reaching implications on our understanding of Earth’s geologic history, including life-altering events such as the Great Oxygenation Event, which occurred 2.4 billion years ago.

Materials, Matter at Extreme States

The Geophysical Laboratory's weekly seminar series continues with Luke Shulenburger of Sandia National Laboratory. He will present, “Pushing the boundaries of computational electronic structure by studying matter under extreme conditions?"

High Pressure, Materials, Matter at Extreme States

The Geophysical Laboratory's weekly seminar series continues with Russell Maier of NIST. He will present, "Point Defect Chemistry of Oxide Perovskites: The Dominant Impacts of Dilute Dopants."

High Pressure, Materials, Matter at Extreme States

Washington, DC— A team of Geophysical Laboratory high-pressure physicists have created a form of carbon that’s hard as diamond, but amorphous, meaning it lacks the large-scale structural repetition of a diamond’s crystalline structure. Their findings are reported in Nature Communications.

High Pressure

The Geophysical Laboratory's weekly seminar series continues with GL's own Jing Yang.  She will present, "Elasticity of Lower Mantle Minerals: Implications to Understand Seismic Observations of the Deep Earth."

High Pressure

The Geophysical Laboratory's weekly seminar series continues with Guoyin Shen of GL's High Pressure Collaborative Access Team (HPCAT). Watch his seminar here.

High Pressure, Materials, Matter at Extreme States

Our science cannot be accomplished without state-of-the-art instruments. But sometimes the existing tools simply aren’t enough.

High Pressure, Materials, Matter at Extreme States

Washington, DC  A group of scientists led by the Geophysical Laboratory's Huiyang Gou and Timothy Strobel performed high-pressure experiments on linear dicyanoacetylene (C4N2) using a diamond anvil cell, in which a pressure-induced reaction process was uncovered. Discrete linear C4N2 molecules were found to polymerize into a disordered extended network without significant change to the bulk composition.

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