{"id":"doi:10.1038/s41467-024-46133-x","kind":"article","title":"Synthesis and superconductivity in yttrium-cerium hydrides at high pressures","authors":["Liu-Cheng Chen","Tao Luo","Zi-Yu Cao","Philip Dalladay‐Simpson","Ge Huang","Di Peng","Lili Zhang","Federico Aiace Gorelli","Guo‐Hua Zhong","Hai‐Qing Lin","Xiao‐Jia Chen"],"author_count":11,"year":2024,"published":"2024-02-28","venue":"Nature Communications","cited_by":65,"doi":"10.1038/s41467-024-46133-x","arxiv_id":null,"nct_id":null,"source_url":"https://doi.org/10.1038/s41467-024-46133-x","archive_url":"https://space-kitty.com/papers/doi:10.1038/s41467-024-46133-x","updated":null,"pmid":"38418489","pmcid":null,"openalex_id":"W4392239362","pdf_url":"https://www.nature.com/articles/s41467-024-46133-x.pdf","abstract":"Abstract Further increasing the critical temperature and/or decreasing the stabilized pressure are the general hopes for the hydride superconductors. Inspired by the low stabilized pressure associated with Ce 4 f electrons in superconducting cerium superhydride and the high critical temperature in yttrium superhydride, we carry out seven independent runs to synthesize yttrium-cerium alloy hydrides. The synthetic process is examined by the Raman scattering and X-ray diffraction measurements. The superconductivity is obtained from the observed zero-resistance state with the detected onset critical temperatures in the range of 97-141 K. The upper critical field towards 0 K at pressure of 124 GPa is determined to be between 56 and 78 T by extrapolation of the results of the electrical transport measurements at applied magnetic fields. The analysis of the structural data and theoretical calculations suggest that the phase of Y 0.5 Ce 0.5 H 9 in hexagonal structure with the space group of P 6 3 / m m c is stable in the studied pressure range. These results indicate that alloying superhydrides indeed can maintain relatively high critical temperature at relatively modest pressures accessible by laboratory conditions.","abstract_license":"CC-BY (publisher license, via OpenAlex)","license":"cc-by","is_open_access":true,"retracted":false,"peer_reviewed":null,"categories":["High-pressure geophysics and materials"],"details":null,"provenance":"openalex","attribution":"Abstract of \"Synthesis and superconductivity in yttrium-cerium hydrides at high pressures\" by Liu-Cheng Chen, Tao Luo, Zi-Yu Cao et al., https://doi.org/10.1038/s41467-024-46133-x, used under its Creative Commons Attribution license (CC-BY); markup removed, otherwise unmodified.","topics":[{"slug":"hydride-superconductors","name":"Superconducting Hydrides Under Pressure","domain_slug":"superconductivity"}],"cited_in_dossiers":[]}