A recipe for an effective selection of promising candidates for high-temperature superconductors among binary hydrides,Materials Today Physics

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A recipe for an effective selection of promising candidates for high-temperature superconductors among binary hydrides
Materials Today Physics ( IF 10.0 ) Pub Date : 2024-07-04 , DOI: 10.1016/j.mtphys.2024.101499
Izabela A. Wrona , Paweł Niegodajew , Artur P. Durajski

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 that may potentially exhibit high values of critical temperature () are far from optimal. In other words, a lot of experimental and numerical effort is wasted on exploring unpromising compounds. By conducting a deep study of a database containing over 580 binary hydride superconductors, we were able to observe some interesting relationships between and selected physico-chemical properties of examined compounds. Among studied parameters, the ratio of the sum of the molecular weight of heavier atoms to the total mass of all hydrogen atoms in the chemical formula of hydride (/) was found to be the most valuable indicator that can help to screen for new promising superconductor candidates. This is because the highest requires the lowest / ratio. Statistical analysis indicates a 28% chance of finding > 200 K within 0

中文翻译：

在二元氢化物中有效选择有前途的高温超导体候选材料的方法

最近对压缩二元氢化物的研究揭示了在接近室温下实现超导性的潜力。然而，选择可能表现出高临界温度 () 值的组成元素背后的可用决策程序远非最佳。换句话说，大量的实验和数值工作都浪费在探索没有前景的化合物上。通过对包含 580 多个二元氢化物超导体的数据库进行深入研究，我们能够观察到所检查化合物的选定物理化学性质之间的一些有趣关系。在研究的参数中，氢化物化学式中较重原子的分子量之和与所有氢原子的总质量之比（/）被发现是最有价值的指标，可以帮助筛选新型有前途的超导体候选人。这是因为最高的需要最低的/比率。统计分析表明有 28% 的机会在 0 范围内找到 > 200 K

更新日期：2024-07-04

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