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The lanthanum-hydrogen system has attracted significant attention following the report of superconductivity in LaH10 at near-ambient temperatures and high pressures. Here, we present the results of our single-crystal X-ray diffraction…

Hydrides have long been considered promising candidates for achieving room-temperature superconductivity; however, the extremely high pressures typically required for high critical temperatures remain a major challenge in experiment. Here,…

Lanthanide hydrogen-rich materials have long been considered as one of the candidates with high-temperature superconducting properties in condensed matter physics, and have attracted great interest. Attempts to investigate the effects of…

Superconductivity · Physics 2022-04-01 Yao Wei , Elena Chachkarova , Evgeny Plekhanov , Nicola Bonini , Cedric Weber

Recently, ternary clathrate hydrides are promising candidates for high-temperature superconductor. However, it is a formidable challenge to effectively hunt high-temperature superconductivity among multinary hydrides due to the expensive…

Superconductivity · Physics 2024-10-29 Bowen Jiang , Xiaoshan Luo , Toshiaki Iitaka , Ying Sun , Xin Zhong , Jian Lv , Yu Xie , Yanming Ma , Hanyu Liu

Over the past decade, a combination of crystal structure prediction techniques and experimental synthetic work has thoroughly explored the phase diagrams of binary hydrides under pressure. The fruitfulness of this dual approach is…

Superconductivity · Physics 2022-02-21 Katerina P. Hilleke , Eva Zurek

Metal superhydrides, known for their high hydrogen content and polyhedral hydrogen cages, are promising candidates for high-temperature superconductivity. Recent research has emphasized "chemical pre-compression," enabling hydrogen…

Superconductivity · Physics 2025-03-06 Yuanhui Sun , Maosheng Miao

We synthesized lanthanum hydride (LaHx) by laser heating of lanthanum in hydrogen atmosphere at pressure P = 170 GPa. The sample shows a superconducting step at 209 K and 170 GPa and temperature dependence of resistance. By releasing the…

Superconductivity · Physics 2018-08-22 A. P. Drozdov , V. S. Minkov , S. P. Besedin , P. P. Kong , M. A. Kuzovnikov , D. A. Knyazev , M. I. Eremets

Hydrides are considered to be one of the most promising families of compounds for achieving high temperature superconductivity. However, there are very few experimental reports of ambient-pressure hydride superconductivity, and the…

Superconductivity · Physics 2026-03-18 Antonio Sanna , Tiago F. T. Cerqueira , Ekin Dogus Cubuk , Ion Errea , Yue-Wen Fang

Recent discovery of superconductive rare earth/actinide superhydrides has ushered in a new era of superconductivity research at high pressures. This distinct type of clathrate metal hydrides was first proposed for alkaline-earth-metal…

Rare-earth hydrides can exhibit high-temperature superconductivity under high pressure. Here, we apply a crystal structure prediction method to the current record-holding $T_c$ material, LaH$_{10}$, and a candidate for even higher $T_c$,…

While hydrogen-rich materials have been demonstrated to exhibit high T$_c$ superconductivity at high pressures, there is an ongoing search for ternary and quaternary hydrides that achieve such high critical temperatures at much lower…

Superconductivity · Physics 2024-07-25 Adam Denchfield , Hyowon Park , Russell J Hemley

The current search for room-temperature superconductivity is inspired by the unique properties of the electron-phonon interaction in metal superhydrides. Encouraged by the recently found highest-$T_C$ superconductor fcc-$LaH_{10}$, here we…

The discovery of a record high superconducting transition temperature (Tc) of 288 K in a pressurized hydride inspires new hope to realize ambient condition superconductivity. Here, we give a perspective on the theoretical and experimental…

Superconductivity · Physics 2021-12-21 Dong Wang , Yang Ding , Ho-Kwang Mao

High-temperature superconductivity has been observed in binary hydrides such as LaH10 at pressures above 150 GPa. Hydrogen cage structures have been identified as a common motif beneficial for high critical temperatures Tc. Efforts are now…

Lanthanum, yttrium, and cerium hydrides are the three most well-known superconducting binary hydrides (La-H, Y-H, and Ce-H systems), which have gained great attention in both theoretical and experimental studies. Recent studies have shown…

Superconductivity · Physics 2022-11-15 Peng Song , Zhufeng Hou , Kousuke Nakano , Kenta Hongo , Ryo Maezono

The uniquely characteristic macrostructures of binary hydrogen-clathrate compounds $M$H$_\textrm{n}$ formed at high pressure, a cage of hydrogens surrounding a central-atom host, is theoretically predicted in various studies to include…

Superconductivity · Physics 2020-06-22 Dale R. Harshman , Anthony T. Fiory

The discovery of high-temperature conventional superconductivity in H3S with a critical temperature of Tc=203 K was followed by the recent record of Tc ~250 K in the face-centered cubic (fcc) lanthanum hydride LaH10 compound. It was…

Recent research on compressed binary hydrides have unveiled the potential for achieving superconductivity at near-room-temperature. Nevertheless, the available decision-making procedures standing behind the selection of constituent elements…

Superconductivity · Physics 2024-09-25 Izabela A. Wrona , Pawel Niegodajew , Artur P. Durajski

Following long-standing predictions associated with hydrogen, high-temperature superconductivity has recently been observed in several hydride-based materials. Nevertheless, these high-$T_c$ phases only exist at extremely high pressures,…

Observation of high-temperature superconductivity in sulfur hydrides at megabar pressures has generated an irresistible wave on searching for new superconductors in other compressed hydrogen-rich compounds. An immediate effort is towards…

Superconductivity · Physics 2016-02-10 Xin Zhong , Hui Wang , Jurong Zhang , Hanyu Liu , Shoutao Zhang , Hai-Feng Song , Guochun Yang , Lijun Zhang , Yanming Ma