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Recent developments on high-pressure single-crystal X-ray diffraction at the Partnership for eXtreme Xtallography (PX2) program


Single-crystal X-ray diffraction is an established method to constrain the structure and chemistry of crystalline minerals under high-pressure conditions. Partnership for eXtreme Xtallography (PX2) is a high-pressure crystallographic research program dedicated to diamond anvil cell research. Located at the experimental station 13-BM-C of the Advanced Photon Source, PX2 provides 10 µm-level focused X-rays at a fixed energy of 28.6 keV, a 6-circle heavy duty diffractometer and a state-of-the-art Pilatus3 1 M photon-counting detector, optimized for a variety of advanced crystallography experiments. A suite of auxiliary equipment including a compact multipurpose optical table and remote membrane-based pressure control has been installed to facilitate the experiments. Resistive and laser heating capabilities have been commissioned to provide high-temperature sample environments for the study of the planetary interior. In this manuscript we present a few examples to demonstrate the experimental capabilities at PX2.

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This work was performed at GeoSoilEnviroCARS (Sector 13), Partnership for Extreme Crystallography program (PX2), Advanced Photon Source (APS), and Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation-Earth Sciences (EAR-1634415) and Department of Energy-Geosciences (DE-FG02-94ER14466). PX2 program is supported by COMPRES under NSF Cooperative Agreement EAR-1661511. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-C02-6CH11357.


Funding was provided by Division of Earth Sciences (Grant No. EAR-1634415, EAR-1661511), U.S. Department of Energy (Grant No. DE-FG02-94ER14466) and Basic Energy Sciences (Grant No. DE-C02-6CH11357).

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Correspondence to Dongzhou Zhang.

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This article is part of a Topical Collection “Experimental and Analytical Techniques at Extreme and Ambient Conditions”, guest edited by Stella Chariton, Vitali B. Prakapenka and Haozhe (Arthur) Liu.

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Zhang, D., Xu, J., Dera, P.K. et al. Recent developments on high-pressure single-crystal X-ray diffraction at the Partnership for eXtreme Xtallography (PX2) program. Phys Chem Minerals 49, 19 (2022).

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  • High pressure
  • High temperature
  • Crystallography
  • X-ray diffraction