论文标题
高压金属氢化物中的直接氢定量
Direct Hydrogen Quantification in High-pressure Metal Hydrides
论文作者
论文摘要
高压金属水合（MH）研究在实现金属化合物后，在凝结物理物理学中演变成一个繁荣的田地，显示了声子在室温附近介导的室温超导性。但是，在确定反应产物的化学公式（尤其是在氢含量方面）的严重限制会阻碍对合成相的深刻理解，并可能导致明显的错误结论。在这里，我们提出了一种直接访问使用核磁共振（NMR）光谱的高压（激光加热）钻石芯片细胞中高压（激光加热）钻石细胞中MH固体的氢含量的方法。我们表明，该方法可用于研究具有广泛氢含量的MH化合物，从X = 0.15（CUH0.15）到X <6.4（H 6+-0.4 S 5）。
High-pressure metal-hydride (MH) research evolved into a thriving field within condensed matter physics following the realisation of metallic compounds showing phonon mediated near room-temperature superconductivity. However, severe limitations in determining the chemical formula of the reaction products, especially with regards to their hydrogen content, impedes a deep understanding of the synthesized phases and can lead to significantly erroneous conclusions. Here, we present a way to directly access the hydrogen content of MH solids synthesised at high pressures in (laser-heated) diamond anvil cells using nuclear magnetic resonance (NMR) spectroscopy. We show that this method can be used to investigate MH compounds with a wide range of hydrogen content, from MHx with x=0.15 (CuH0.15) to x < 6.4 (H 6+-0.4 S 5).
