摘要
The lutetium dihydride LuH2is stable at ambient conditions.Here we show that its color undergoes sequential changes from dark blue at ambient pressure to pink at ~2.2 GPa and then to bright red at ~4 GPa upon compression in a diamond anvil cell.Such a pressure-induced color change in LuH2is reversible and it is very similar to that recently reported in the N-doped lutetium hydride [Nature 615,244(2023)].However,our preliminary resistance measurements on LuH2under pressures up to ~7 GPa evidenced no superconductivity down to 1.5 K.
作者
单鹏飞
王宁宁
郑希诠
仇清正
彭莹莹
程金光
Pengfei Shan;Ningning Wang;Xiquan Zheng;Qingzheng Qiu;Yingying Peng;Jinguang Cheng(Beijing National Laboratory for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;International Center for Quantum Materials,School of Physics,Peking University,Beijing 100871,China)
基金
supported by the National Natural Science Foundation of China (Grant Nos.12025408,11921004,11888101,and 11974029)
the Beijing Natural Science Foundation (Grant No.Z190008)
the National Key R&D Program of China (Grant Nos.2018YFA0305700 and 2021YFA1400200)
the Strategic Priority Research Program of CAS (Grant No.XDB33000000)
the CAS Interdisciplinary Innovation Team (Grant No.JCTD-2019-01)。
