Dr. Dongzhou Zhang [GeoSoilEnviroCARS, University of Chicago, & University of Hawaii, USA]

Title: High pressure research at the Partnership for eXtreme Xtallography (PX^2) Project

Time: 2:00 - 3:00 PM, Thursday, January 28, 2016

Place: CSRC Building, Conference Room C-206, HPSTAR (Beijing)

Host: Dr. Haozhe Liu

Abstract:

The Partnership for eXtreme Xtallography (PX^2) project is a collaboration between the University of Hawaii and GeoSoilEnviroCARS (GSECARS), located at the Advanced Photon Source (APS) experimental station 13-BM-C. PX^2 is providing new capabilities for high-pressure diamond anvil cell research at the GSECARS APS beamline.    This beamline provides focused x-rays at two fixed energies: 15 and 29 keV, and a unique 6-circle heavy duty diffractometer, optimized for a variety of advanced crystallography experiments including interface studies, powder and single crystal structure determination, equation of state studies and thermal diffuse scattering. Currently we support high pressure and temperature experiments using resistively heated diamond anvil cells, and have achieved P-T conditions of 100 GPa and 1000 K. Results of multiple recent experiments, including powder and single crystal diffraction over a range of P-T conditions, equations of state and thermal diffuse scattering will be presented to demonstrate the experimental capabilities. These new capabilities are available to all researchers interested in studying deep earth materials through the APS General User Proposal system.

Biography of the Speaker:

Dr. Dongzhou Zhang received his B.S. in physics from Peking University, Beijing, China, in 2008. He completed his Ph.D. in geophysics under the supervision of Professor Jennifer M. Jackson at California Institute of Technology, Pasadena, CA, in 2014. He is currently the beamline scientist of the Partnership for eXtreme Xtallography (PX^2) program affiliated with the University of Hawaii at Manoa and located at the GeoSoilEnviroCARS at Argonne National Laboratory. His research interests include physics and chemistry of the planetary interiors, high pressure physics and synchrotron based X-ray techniques. He received several awards, including the Chinese Government Award for Outstanding Self-Financed Students Abroad (2013) and the American Geophysical Union Mineral and Rock Physics Graduate Research Award (2015).