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美国物理学家海姆莱等人宣称,在极高的压力下氢可变成金属。此发现有助于解决理论物理学、凝聚态物理和行星科学中的一些重要问题。海姆莱等人在实验中将氢(77K)置于金刚石砧之间,加高压直至250万个大气压,发现样品氢变成了黑色固态物质。他们的实验步骤是,加在几立方毫米的氢样品上的压力逐渐增加,并使压力在不同数值上稳定几小时或几天,以观察氢的形态变化,发现氢由绝缘体渐变成半导体,后来可能变成导体(金属)。这可通过透明金刚石砧用肉眼观察;也可用激光照射样品,通过测定喇曼效
American physicists Heimle et al. claimed that hydrogen can become metal under extremely high pressure. This discovery helps solve some of the important issues in theoretical physics, condensed matter physics, and planetary science. In the experiment, Heimle et al. placed hydrogen (77K) between the diamond anvils and applied high pressure up to 2.5 million atmospheres. It was found that the sample hydrogen became a black solid material. Their experimental procedure was to gradually increase the pressure on a few cubic millimeters of hydrogen sample and stabilize the pressure at different values for several hours or days to observe the hydrogen morphological change and found that hydrogen gradually changed from an insulator to a semiconductor. It may become a conductor (metal) later. This can be observed with the naked eye through a transparent diamond anvil; it can also be irradiated with a laser to measure the Raman effect.