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, Materials

Washington, DC—It would be difficult to overestimate the importance of silicon when it comes to computing, solar energy, and other technological applications. (Not to mention the fact that it makes up an awful lot of the Earth’s crust.) Yet there is still so much to learn about how to harness the capabilities of element number 14.

The most-common form of silicon crystallizes in the same structure as diamond. But other forms can be created using different processing techniques. New work led by the Geophysical Laboratory's Tim Strobel and published in Physical Review Letters shows that one form of silicon, called Si-III (or sometimes BC8), which is synthesized using a high-pressure process, is what’s called a narrow band gap semiconductor.

High Pressure, Materials

The Geophysical Laboratory's weekly seminar series continues with our own Sergey Lobanov.  He will present, "Peeking into the color of the lower mantle: Optical studies of minerals at high P/T.”

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.

Materials

Juli-Anna Dolyniuk is a postdoctoral associate from the University of California, Davis.  Juli-Anna is working with Tim Strobel on the development of new carbon and carbon-rich frameworks.

High Pressure

The Geophysical Laboratory's weekly seminar series continues with Arianna Gleason from Stanford University.  She will present, "Ultrafast X-ray Studies on the Dynamics of Transitions in Planetary Materials."

High Pressure, Materials

Washington, DC—Germanium may not be a household name like silicon, its group-mate on the periodic table, but it has great potential for use in next-generation electronics and energy technology.

Of particular interest are forms of germanium that can be synthesized in the lab under extreme pressure conditions. However, one of the most-promising forms of germanium for practical applications, called ST12, has only been created in tiny sample sizes—too small to definitively confirm its properties.

High Pressure, Materials

The Geophysical Laboratory's weekly seminar series continues with Susannah Dorfman of Michigan State University.  She will present, "Deep Earth Redox: Iron and Carbon in the Lower Mantle.”

Astrobiology, Department, Geochemistry, High Pressure, Materials, Mineralogy, Planetary Science

The AGU Fall Meeting 2016 will take place in San Francisco, CA from December 12-17.  Many staff members and postdoctoral associates from the Geophysical Laboratory will attend this year.  

Check here daily for live updates on each day's science presentations; or follow along on Facebook, Twitter, YouTube and Instagram. For a live stream of conference photos, click here or follow along below!

High Pressure, Materials

Gustav Borstad is a postdoctoral associate working with Tim Strobel on the discovery and characterization of novel carbon-rich materials.  He is also searching for optimization of properties such as hardness, optical activity and conductivity utilizing high-pressure techniques with spectroscopy a

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