Structures of two intermediate phases between the B1 and B2 phases of PbS under high pressure
Source abstract
Abstract
The structural transitions of PbS were investigated at pressures up to 50 GPa using synchrotron powder and single crystal X-ray diffraction (XRD) methods in diamond anvil cells. We found two intermediate phases between the B1 phase under atmospheric pressure and the B2 phase at 21.1 GPa, which is different to previous reports. The structures of these two intermediate phases were indexed as B27 and B33, respectively. Their structural parameters were investigated using density functional theory (DFT) calculations. Our results provide a new insight into understanding the transition pathway between the B1 and B2 phases in PbS.
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Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · High-pressure geophysics and materials · Iron-based superconductors research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of High Energy Physics, Chinese Academy of Science 1 Beijing Synchrotron Radiation Facility, , Beijing 100049, China
Institute of Fluid Physics, China Academy of Engineering Physics 2 , P. O. Box 919-102, Mianyang, Sichuan 621900, P. R. China
Yanshan University 3 State Key Laboratory of Metastable Materials Science and Technology, , Qinhuangdao 066004, China
Funding
National Natural Science Foundation of China
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