Crystallography of low Z material at ultrahigh pressure: Case study on solid hydrogen

Ji Cheng; Li Bing; Liu Wenjun; Smith Jesse S.; Björling Alexander; Majumdar Arnab; Luo Wei; Ahuja Rajeev; Shu Jinfu; Wang Junyue; Sinogeikin Stanislav; Meng Yue; Prakapenka Vitali B.; Greenberg Eran; Xu Ruqing; Huang Xianrong; Ding Yang; Soldatov Alexander; Yang Wenge; Shen Guoyin; Mao Wendy L.; Mao Ho-Kwang

doi:10.1063/5.0003288

Volume 5 Issue 3

May 2020

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Ji Cheng, Li Bing, Liu Wenjun, Smith Jesse S., Björling Alexander, Majumdar Arnab, Luo Wei, Ahuja Rajeev, Shu Jinfu, Wang Junyue, Sinogeikin Stanislav, Meng Yue, Prakapenka Vitali B., Greenberg Eran, Xu Ruqing, Huang Xianrong, Ding Yang, Soldatov Alexander, Yang Wenge, Shen Guoyin, Mao Wendy L., Mao Ho-Kwang. Crystallography of low Z material at ultrahigh pressure: Case study on solid hydrogen[J]. Matter and Radiation at Extremes, 2020, 5(3): 038401. doi: 10.1063/5.0003288

Citation:

Ji Cheng, Li Bing, Liu Wenjun, Smith Jesse S., Björling Alexander, Majumdar Arnab, Luo Wei, Ahuja Rajeev, Shu Jinfu, Wang Junyue, Sinogeikin Stanislav, Meng Yue, Prakapenka Vitali B., Greenberg Eran, Xu Ruqing, Huang Xianrong, Ding Yang, Soldatov Alexander, Yang Wenge, Shen Guoyin, Mao Wendy L., Mao Ho-Kwang. Crystallography of low Z material at ultrahigh pressure: Case study on solid hydrogen[J]. Matter and Radiation at Extremes, 2020, 5(3): 038401. doi: 10.1063/5.0003288

Citation:

Ji Cheng, Li Bing, Liu Wenjun, Smith Jesse S., Björling Alexander, Majumdar Arnab, Luo Wei, Ahuja Rajeev, Shu Jinfu, Wang Junyue, Sinogeikin Stanislav, Meng Yue, Prakapenka Vitali B., Greenberg Eran, Xu Ruqing, Huang Xianrong, Ding Yang, Soldatov Alexander, Yang Wenge, Shen Guoyin, Mao Wendy L., Mao Ho-Kwang. Crystallography of low Z material at ultrahigh pressure: Case study on solid hydrogen[J]. Matter and Radiation at Extremes, 2020, 5(3): 038401. doi: 10.1063/5.0003288

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Crystallography of low Z material at ultrahigh pressure: Case study on solid hydrogen

doi: 10.1063/5.0003288

1.
Center for High Pressure Science and Technology Advanced Research, Beijing 100094, China
2.
High Pressure Collaborative Access Team, Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, USA
3.
Center for the Study of Matter at Extreme Conditions and Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33199, USA
4.
Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
5.
HPCAT, X-Ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
6.
MAX IV Laboratory, Lund University, 22100 Lund, Sweden
7.
Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala S-75120, Sweden
8.
Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA
9.
Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97187 Luleå, Sweden
10.
Department of Geological Sciences, Stanford University, Stanford, California 94305, USA
11.
Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

More Information

Corresponding author: c)Author to whom correspondence should be addressed: maohk@hpstar.ac.cn
Received Date: 2020-01-31
Accepted Date: 2020-03-15

Available Online: 2020-05-01

Publish Date: 2020-05-15

Abstract

Abstract

Diamond anvil cell techniques have been improved to allow access to the multimegabar ultrahigh-pressure region for exploring novel phenomena in condensed matter. However, the only way to determine crystal structures of materials above 100 GPa, namely, X-ray diffraction (XRD), especially for low Z materials, remains nontrivial in the ultrahigh-pressure region, even with the availability of brilliant synchrotron X-ray sources. In this work, we perform a systematic study, choosing hydrogen (the lowest X-ray scatterer) as the subject, to understand how to better perform XRD measurements of low Z materials at multimegabar pressures. The techniques that we have developed have been proved to be effective in measuring the crystal structure of solid hydrogen up to 254 GPa at room temperature [C. Ji et al., Nature 573 , 558–562 (2019)]. We present our discoveries and experiences with regard to several aspects of this work, namely, diamond anvil selection, sample configuration for ultrahigh-pressure XRD studies, XRD diagnostics for low Z materials, and related issues in data interpretation and pressure calibration. We believe that these methods can be readily extended to other low Z materials and can pave the way for studying the crystal structure of hydrogen at higher pressures, eventually testing structural models of metallic hydrogen.

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References(71)

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