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Title: | Stabilization of high-pressure phase of face-centered cubic lutetium trihydride at ambient conditions | Authors: | Li, Xin Wang, Ying Fu, Yuhao Redfern, Simon Anthony Turner Jiang, Shuqing Zhu, Pinwen Cui, Tian |
Keywords: | Earth and Environmental Sciences | Issue Date: | 2024 | Source: | Li, X., Wang, Y., Fu, Y., Redfern, S. A. T., Jiang, S., Zhu, P. & Cui, T. (2024). Stabilization of high-pressure phase of face-centered cubic lutetium trihydride at ambient conditions. Advanced Science, 11(29), e2401642-. https://dx.doi.org/10.1002/advs.202401642 | Journal: | Advanced Science | Abstract: | Superconductivity at room temperature and near-ambient pressures is a highly sought-after phenomenon in physics and materials science. A recent study reported the presence of this phenomenon in N-doped lutetium hydride [Nature 615, 244 (2023)], however, subsequent experimental and theoretical investigations have yielded inconsistent results. This study undertakes a systematic examination of synthesis methods involving high temperatures and pressures, leading to insights into the impact of the reaction path on the products and the construction of a phase diagram for lutetium hydrides. Notably, the high-pressure phase of face-centered cubic LuH3 (fcc-LuH3) is maintained to ambient conditions through a high-temperature and high-pressure method. Based on temperature and anharmonic effects corrections, the lattice dynamic calculations demonstrate the stability of fcc-LuH3 at ambient conditions. However, no superconductivity is observed above 2 K in resistance and magnetization measurements in fcc-LuH3 at ambient pressure. This work establishes a comprehensive synthesis approach for lutetium hydrides, thereby enhancing the understanding of the high-temperature and high-pressure method employed in hydrides with superconductivity deeply. | URI: | https://hdl.handle.net/10356/179913 | ISSN: | 2198-3844 | DOI: | 10.1002/advs.202401642 | Schools: | Asian School of the Environment | Rights: | © 2024 The Author(s). Advanced Science published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | ASE Journal Articles |
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Advanced Science - 2024 - Li - Stabilization of High‐Pressure Phase of Face‐Centered Cubic Lutetium Trihydride at Ambient.pdf | 2.68 MB | Adobe PDF | View/Open |
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