用于高压研究的台式NMR系统，带有原位laser加热
Table-top NMR system for high-pressure studies with in-situ laser heating
摘要：
已知高压核磁共振（NMR）可以揭示物质在极端条件下的行为。然而，超导磁体的显著维护需求、空间要求和高成本使得其应用对于常规现代高压实验室而言不可行。在这里，我们提出了一个桌面核磁共振系统的基础上的永久Halbach磁体阵列的尺寸为25厘米直径和4厘米的高度。在室温和25 GPa下，在1013 mT的最高场下，记录了Ice VII的~ 1H-NMR谱。台式NMR系统可与双面激光加热装置一起使用。通过收集25 GPa和1063（50）K下H2O的1H-NMR谱，论证了高压高温NMR的可行性。我们发现，在激光加热的金刚石对顶砧核磁共振装置中，信号强度的变化为温度测量提供了一种方便的方法。
英文摘要：
High pressure Nuclear Magnetic Resonance (NMR) is known to uncover behavior of matter at extreme conditions. However, significant maintenance demands, space requirements and high costs of superconducting magnets render its application unfeasible for regular modern high pressure laboratories. Here, we present a table-top NMR system based on permanent Halbach magnet arrays with dimensions of 25 cm diameter and 4 cm height. At the highest field of 1013 mT, 1H-NMR spectra of Ice VII have been recorded at 25 GPa and ambient temperature. The table-top NMR system can be used together with double sided laser heating set-ups. Feasibility of high-pressure high-temperature NMR was demonstrated by collecting 1H-NMR spectra of H2O at 25 GPa and 1063(50) K. We found that the change in signal intensity in laser-heated NMR diamond anvil cell yields a convenient way for temperature measurements.
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