Multimegabar Research: X-ray and Optical Studies

这个研究项目将把分子固体的静压范围从230 GPa扩大到460 GPa以上，并将提供对氢、氧、氮以及碱氢化物新形式的研究。目标是制造和研究固体原子金属氢、氧和氮。研究氢化物的目的是为了更多地了解氢化物离子的性质。x射线衍射和光学研究，拉曼，吸收和反射光谱将被使用。微小型化将被强调，金刚石砧尖缩小到20微米，耐火衬垫材料的初始样品孔直径为6微米。这个研究项目计划制造固体原子金属氢，它被预测为高温超导体。在这个项目中，还计划形成固体原子金属氧和氮。其目的是为了解这些独特的新金属提供一个强有力的基础。为了实现这些目标，该项目计划将分子固体所研究的压力范围扩大一倍，达到460 GPa（或4.6 Mbar或460万个大气压），这比地核的压力还要大。这项研究的一个目的是确定金属氢是否能在大气压力下持续存在。如果实现了这个目标，可能会有一些独特的应用。＊＊＊

9530634 Ruoff This research project will extend the static pressure range on molecular solids to above 460 GPa - from 230 GPa - and will provide a study of new forms of hydrogen, oxygen, and nitrogen as well as alkali hydrides. The objective is to make and study solid atomic metallic hydrogen, oxygen and nitrogen. The study of hydrides has the intent of learning more about the nature of the hydride ion. X-ray diffraction and optical studies, Raman, absorption, and reflection spectroscopy will be used. Microminiaturization will be emphasized with diamond anvil tips reduced to 20 micrometers and initial sample hole diameters in the refractory gasket material of 6 micrometers. %%% This research project plans to make solid atomic metallic hydrogen that has been predicted to be a high temperature superconductor. Solid atomic metals of oxygen and nitrogen are also planned to be formed during this project. The intent is to provide a strong fundamental basis for the understanding of these unique new metals. To achieve these goals this project plans to double the pressure range to which molecular solids have been studied to reach 460 GPa (or 4.6 Mbar or 4.6 million atmospheres) which is greater than the pressure at the earth's core. An objective of this research is to determine whether metallic hydrogen can persist at atmospheric pressure. If this objective is met there may follow some unique applications. ***