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相关论文: Superconductivity above 180 K in Ca-Mg Ternary Sup…

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Ternary or more complex hydrogen-rich hydrides are the main hope of reaching room-temperature superconductivity at high pressures. Their chemical space is vast and its exploration is challenging. Here we report the investigation of the…

超导电性 · 物理学 2023-12-13 Grigoriy Shutov , Dmitrii Semenok , Ivan A. Kruglov , Artem R. Oganov

The abundant chemical compositions in ternary hydrides bring much more possibility to explore high temperature superconductors under lower pressure. Here we constructed 115 ternary hydrides on the basis of the elements substitution using 16…

超导电性 · 物理学 2024-11-19 Bangshuai Zhu , Dexi Shao , Cuiying Pei , Qi Wang , Juefei Wu , Yanpeng Qi

The search for high-temperature superconductors in hydrides under high pressure has always been a research hotspot. Hydrogen-based superconductors offer an avenue to achieve the long-sought goal of superconductivity at room temperature. We…

超导电性 · 物理学 2023-05-22 Ming Xu , Defang Duan , Wendi Zhao , Decheng An , Hao Song , Tian Cui

The search for room temperature superconductivity has accelerated dramatically in the last few years driven largely by theoretical predictions that first indicated alloying dense hydrogen with other elements could produce conventional…

Motivated by the recent discovery of near-room temperature superconductivity in high-pressure superhydrides, we investigate from first-principles the high-pressure superconducting phase diagram of the ternary Ca-B-H system, using ab-initio…

超导电性 · 物理学 2020-08-26 Simone Di Cataldo , Wolfgang von der Linden , Lilia Boeri

Recent predictions and experimental observations of high Tc superconductivity in hydrogen-rich materials at very high pressures are driving the search for superconductivity in the vicinity of room temperature. We have developed a novel…

Ternary hydrides are considered as the ideal candidates with high critical temperature (Tc) stabilized at submegabar pressure, evidenced by the recent discoveries in LaBeH8 (110 K at 80 GPa) and LaB2H8 (106 K at 90 GPa). Here, we…

超导电性 · 物理学 2024-12-02 Tingting Gu , Wenwen Cui , Jian Hao , Jingming Shi , Artur P. Durajski , Hanyu Liu , Yinwei Li

Ternary hydrides have emerged as the primary focus of the new wave of research into superconducting hydrides. In this work, Mg-Ti-H ternary hydrides are explored under high pressures up to 300 GPa using the prediction method of the particle…

材料科学 · 物理学 2026-02-10 Pan Min , Wang Yujie , Hu Kaige , Deng Huiqiu

Polyhydrides offer intriguing perspectives as high-temperature superconductors. Here we report the high-pressure synthesis of a series of lanthanum-yttrium ternary hydrides: cubic hexahydride $(La,Y)H_{6}$ with a critical temperature…

It has been a hot issue to search for hydrides at high pressure with high superconducting transition temperature (Tc). In this work, ternary hydrogen-rich compounds KYHn (n = 1-16) were studied and calculated using the density function…

超导电性 · 物理学 2021-10-27 LingYan Chen

The use of high pressure to realize superconductivity in the vicinity of room temperature has a long history, much of it focused on achieving this in hydrogen rich materials. This paper provides a brief overview of the work presented at…

超导电性 · 物理学 2019-06-11 Russell J. Hemley , Muhtar Ahart , Hanyu Liu , Maddury Somayazulu

Covalent and ionic polyhydrides have become the two main camps in searching for the high-temperature superconductors under pressure. They have been considered as important platforms for exploring ternary or multiple hydrides in order to…

超导电性 · 物理学 2023-05-31 Wuhao Chen , Xiaoli Huang , Dmitrii V. Semenok , Su Chen , Kexin Zhang , Artem R. Oganov , Tian Cui

A key challenge in materials discovery is to find high-temperature superconductors. Hydrogen and hydride materials have long been considered promising materials displaying conventional phonon-mediated superconductivity. However, the high…

Hydrogen-rich superconductors are promising candidates to achieve room-temperature superconductivity. However, the extreme pressures needed to stabilize these structures significantly limit their practical applications. An effective…

Here we report targeted high-pressure synthesis of two novel high-$T_C$ hydride superconductors, $P6_3/mmc$-$ThH_9$ and $Fm\bar{3}m$-$ThH_{10}$, with the experimental critical temperatures ($T_C$) of 146 K and 159-161 K and upper critical…

We review five years of experimental and theoretical attempts (2020-2025) to enhance the superconducting critical temperature ($\textit{T$_c$}$) of hydrogen-rich compounds by alloying binary superhydrides with additional elements. Despite…

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…

超导电性 · 物理学 2022-11-15 Peng Song , Zhufeng Hou , Kousuke Nakano , Kenta Hongo , Ryo Maezono

The research on hydrogen-rich ternary compounds attract tremendous attention for it paves new route to room-temperature superconductivity at lower pressures. Here, we study the crystal structures, electronic structures, and superconducting…

超导电性 · 物理学 2023-12-19 Juefei Wu , Bangshuai Zhu , Chi Ding , Cuiying Pei , Qi Wang , Jian Sun , Yanpeng Qi

The flourishing rare earth superhydrides are a class of recently discovered materials that possess near-room-temperature superconductivity at high pressures, opening a new era of superconductivity research at high pressures. Among these…

超导电性 · 物理学 2022-10-12 Yingying Wang , Kui Wang , Yao Sun , Liang Ma , Yanchao Wang , Bo Zou , Guangtao Liu , Mi Zhou , Hongbo Wang

The discovery of high-temperature superconductors remains a central challenge in materials science. Hydrogen-rich compounds are among the most promising candidates, as they can exhibit phonon-mediated superconductivity at elevated critical…

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