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.

Department, Matter at Extreme States

Washington, DC--Experimental petrologist Michael Walter, currently head of the School of Earth Sciences at the University of Bristol, has been selected as the eighth director of Carnegie’s Geophysical Laboratory.  He will begin his directorship on April 1, 2018.  

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

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. "

High Pressure, Materials, Matter at Extreme States

Dhiren Pradhan is a postdoctoral associate working with Ronald Cohen. His works involve experiments on ferroelectrics, piezoelectrics, hyperferroelectrics and magnetoelectric materials.  He recently completed his Ph.D. in Chemical Physics from the University of Puerto Rico,USA.

High Pressure, Matter at Extreme States

Washington, DC— A team led by the Geophysical Laboratory's Yingwei Fei, a experimental petrologist, and Cheng Xu, a field geologist from Peking University, has discovered that a rare sample of the mineral majorite originated at least 235 miles below Earth’s surface.

Matter at Extreme States

The Geophysical Laboratory's weekly seminar series continues with Ranga Dias of Harvard University.  He will present, "Pressing the simplest element to exotic quantum states."

High Pressure, Materials, Matter at Extreme States

Amol Karandikar is a postdoctoral associate working with Tim Strobel and Reinhard Boehler.  Amol is working on material synthesis and phase stability of carbon/hydrogen rich compounds and light element transport in metals.

High Pressure, Matter at Extreme States

Washington, DC— Although helium is the second most-abundant element (after hydrogen) in the universe, it doesn’t play well with others. It is a member of a family of seven elements called the noble gases, which are called that because of their chemical aloofness—they don’t easily form compounds with other elements. Helium, widely believed to be the most inert element, has no stable compounds under normal conditions. 

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