Tellurium Hydrides at High Pressures: High-Temperature Superconductors

Physical Review Letters
Xin ZhongYanming Ma

Abstract

Observation of high-temperature superconductivity in compressed sulfur hydrides has generated an irresistible wave of searches for new hydrogen-containing superconductors. We herein report the prediction of high-T_{c} superconductivity in tellurium hydrides stabilized at megabar pressures identified by first-principles calculations in combination with a swarm structure search. Although tellurium is isoelectronic to sulfur or selenium, its heavier atomic mass and weaker electronegativity makes tellurium hydrides fundamentally distinct from sulfur or selenium hydrides in stoichiometries, structures, and chemical bondings. We identify three metallic stoichiometries of H_{4}Te, H_{5}Te_{2}, and HTe_{3}, which are not predicted or known stable structures for sulfur or selenium hydrides. The two hydrogen-rich H_{4}Te and H_{5}Te_{2} phases are primarily ionic and contain exotic quasimolecular H_{2} and linear H_{3} units, respectively. Their high-T_{c} (e.g., 104 K for H_{4}Te at 170 GPa) superconductivity originates from the strong electron-phonon couplings associated with intermediate-frequency H-derived wagging and bending modes, a superconducting mechanism which differs substantially with those in sulfur or selenium hydrides wher...Continue Reading

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Citations

Mar 5, 2016·Journal of the American Chemical Society·Guochun YangYanming Ma
Oct 27, 2016·Inorganic Chemistry·Shoutao ZhangGuochun Yang
Apr 12, 2017·Inorganic Chemistry·Shoutao ZhangGuochun Yang
Mar 12, 2016·Scientific Reports·M Mahdi Davari EsfahaniXiang-Feng Zhou
Jun 21, 2017·Proceedings of the National Academy of Sciences of the United States of America·Hanyu LiuRussell J Hemley
Oct 21, 2016·Physical Chemistry Chemical Physics : PCCP·Xiaofeng LiFeng Peng
Sep 20, 2018·Physical Chemistry Chemical Physics : PCCP·Ziji ShaoTian Cui
Feb 15, 2019·Chemical Communications : Chem Comm·Cheng LiuHuaping Xu
Feb 21, 2019·Physical Chemistry Chemical Physics : PCCP·Wen-Hua YangC Z Wang
Jul 4, 2019·Physical Chemistry Chemical Physics : PCCP·Xiaofeng Li, Feng Peng
May 12, 2020·Physical Chemistry Chemical Physics : PCCP·Xin DuGuochun Yang
May 7, 2020·Physical Chemistry Chemical Physics : PCCP·Chunhong MaGuochun Yang
Nov 17, 2017·The Journal of Chemical Physics·Edward J PaceRoss T Howie
Apr 27, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Xuehui XiaoTian Cui
Oct 5, 2017·Physical Chemistry Chemical Physics : PCCP·Yanbin MaTian Cui
Feb 10, 2018·Physical Chemistry Chemical Physics : PCCP·Chang LiuWeitao Zheng
Aug 30, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·D SzczęśniakK A Szewczyk
Jul 15, 2018·Scientific Reports·Yuanzheng ChenHui Wang
Jul 30, 2017·Scientific Reports·José A Flores-LivasMiguel A L Marques
May 27, 2017·Physical Review Letters·Xuelong WangLiquan Chen
Apr 27, 2021·The Journal of Physical Chemistry Letters·Fei LiGuochun Yang
Jun 17, 2021·The Journal of Physical Chemistry Letters·Miriam Peña-AlvarezRoss T Howie
Mar 17, 2017·Inorganic Chemistry·Quan ZhuangKuo Bao
Apr 25, 2020·The Journal of Physical Chemistry Letters·Xiaohua Zhang, Guochun Yang
Sep 12, 2019·ACS Omega·Ju ChenYinwei Li
Mar 14, 2019·Journal of the American Chemical Society·Jianyan LinYanming Ma
Nov 3, 2017·Inorganic Chemistry·Xiaofeng Li, Feng Peng
Aug 28, 2021·Chemical Reviews·Matthew M D RoyEric Rivard
May 9, 2019·The Journal of Physical Chemistry Letters·Xianqi SongYanming Ma
Dec 31, 2021·The Journal of Physical Chemistry Letters·Xiaohua ZhangGuochun Yang

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