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.

Materials

Mijanur Rahaman is a postdoctoral associate at the Geophysical Laboratory. He is working with Ron Cohen on the study on ferroelectrics, multiferroics, relaxor ferroelectrics, and piezoelectric materials using first-principles calculations and experiments.

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.

Department, High Pressure, Materials, Matter at Extreme States

The Geophysical Laboratory’s Postdoctoral Associate Zachary Geballe has been honored with Carnegie’s seventh Postdoctoral Innovation and Excellence (PIE) Award. These prizes are made through nominations from the departments and are chosen by the Office of the President.

Materials

The Geophysical Laboratory's weekly seminar series continues with Yifei Mo of the Department of Material Sciences and Engineering at the University of Maryland. He will present, "Computation Accelerated Design of Materials and Interfaces for Solid-State Batteries."

High Pressure, Materials, Matter at Extreme States

The Geophysical Laboratory's weekly seminar series continues with Sébastian Merkel of Université Lille 1.  He will present, "The fate of post-perovskite in the Earth's D'' layer: Insights from grain tracking experiments."

Materials

Washington, DC— A team including several Geophysical Laboratory scientists has developed a form of ultrastrong, lightweight carbon that is also elastic and electrically conductive. A material with such a unique combination of properties could serve a wide variety of applications from aerospace engineering to military armor.

Materials

The Geophysical Laboratory's weekly seminar series continues with Alexey Kolmogorov of Binghamton University.  He will present, "New materials made under pressure: from prediction to discovery."

Materials

The Geophysical Laboratory's weekly seminar series continues with Eran Greenberg of the University of Chicago.  He will present, "Pressure Induced Electronic/Magnetic Transitions in Iron Oxides – Beyond the Classic Mott and Spin Transitions. "

Pages