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Volume 14
Issue 7
10.3390/min14070715
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Article

In Situ XRD Measurement for High-Pressure Iron in Laser-Driven Off-Hugoniot State

by
Liang Sun
1,*,
Hao Liu
1,2,
Xiaoxi Duan
1,
Huan Zhang
1,
Zanyang Guan
1,
Weimin Yang
1,
Xiaokang Feng
3,
Youjun Zhang
4,
Yulong Li
1,
Sanwei Li
1,
Dong Yang
1,
Zhebin Wang
1,
Jiamin Yang
1,
Jin Liu
5,
Wenge Yang
3,
Toshimori Sekine
3,6,7 and
Zongqing Zhao
1
1
National Key Laboratory of Plasma Physics, Laser Fusion Research Center, Chinese Academy of Engineering Physics, Mianyang 621900, China
2
Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
3
Center for High Pressure Science and Technology Advanced Research (HPSTAR), Bejing 201203, China
4
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
5
Center for High Pressure Science (CHiPS), State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
6
Graduate School of Engineering, Osaka University, Sakai 599-8531, Japan
7
Shanghai Key Laboratory of Material Frontiers Research in Extreme Environments (MFree), Shanghai 201203, China
*
Author to whom correspondence should be addressed.
Minerals 2024, 14(7), 715; https://doi.org/10.3390/min14070715
Submission received: 27 May 2024 / Revised: 5 July 2024 / Accepted: 9 July 2024 / Published: 15 July 2024
(This article belongs to the Special Issue Phase Transitions and Physical Properties of Minerals under Extreme Conditions of Pressure and Temperature)
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Abstract

The investigation of iron under high pressure and temperatures is crucial to understand the Earth’s core structure and composition and the generation of magnetic fields. Here, we present new in situ XRD measurements for iron in an off-Hugoniot state by laser-driven ramp compression at pressure of 200–238 GPa. The lattice parameters for the hexagonal (hcp)-Fe phase and the c/a ratios were obtained to compare them with previous static and dynamical data, which provides the direct confirmation of such parameters via the different compression paths and strain rates. This work indicates that laser ramp compression can be utilized to provide crystal structure information and direct key information on the crystal structure of Fe at the ultrahigh pressure–temperature conditions relevant for planetology.
Keywords: iron; high pressure; diffraction; lattice constant c/a ratio iron; high pressure; diffraction; lattice constant c/a ratio

Share and Cite

MDPI and ACS Style

Sun, L.; Liu, H.; Duan, X.; Zhang, H.; Guan, Z.; Yang, W.; Feng, X.; Zhang, Y.; Li, Y.; Li, S.; et al. In Situ XRD Measurement for High-Pressure Iron in Laser-Driven Off-Hugoniot State. Minerals 2024, 14, 715. https://doi.org/10.3390/min14070715

AMA Style

Sun L, Liu H, Duan X, Zhang H, Guan Z, Yang W, Feng X, Zhang Y, Li Y, Li S, et al. In Situ XRD Measurement for High-Pressure Iron in Laser-Driven Off-Hugoniot State. Minerals. 2024; 14(7):715. https://doi.org/10.3390/min14070715

Chicago/Turabian Style

Sun, Liang, Hao Liu, Xiaoxi Duan, Huan Zhang, Zanyang Guan, Weimin Yang, Xiaokang Feng, Youjun Zhang, Yulong Li, Sanwei Li, and et al. 2024. "In Situ XRD Measurement for High-Pressure Iron in Laser-Driven Off-Hugoniot State" Minerals 14, no. 7: 715. https://doi.org/10.3390/min14070715

APA Style

Sun, L., Liu, H., Duan, X., Zhang, H., Guan, Z., Yang, W., Feng, X., Zhang, Y., Li, Y., Li, S., Yang, D., Wang, Z., Yang, J., Liu, J., Yang, W., Sekine, T., & Zhao, Z. (2024). In Situ XRD Measurement for High-Pressure Iron in Laser-Driven Off-Hugoniot State. Minerals, 14(7), 715. https://doi.org/10.3390/min14070715

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