NEW HIGH-PRESSURE STRUCTURAL TRANSITION OF OXYGEN AT 96 GPA ASSOCIATED WITH METALLIZATION IN A MOLECULAR-SOLID
NEW HIGH-PRESSURE STRUCTURAL TRANSITION OF OXYGEN AT 96 GPA ASSOCIATED WITH METALLIZATION IN A MOLECULAR-SOLID
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DOI：
10.1103/physrevlett.74.4690
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发表时间：
1995-06-05
影响因子：
8.6
通讯作者：
SHIMOMURA, O
中科院分区：
文献类型：
--
作者：
AKAHAMA, Y;KAWAMURA, H;SHIMOMURA, O
利用欧洲同步辐射装置和光子工厂的高能、高亮度同步辐射源，在室温下对固体氧进行了高达116 GPa的角色散粉末X射线衍射研究。在 96 GPa 下观察到新的高压结构转变，并将其解释为单斜晶胞中晶格常数不连续变化的同构转变。 Desgreniers、Vohra 和 Ruoff 报道了氧的金属化 [J.物理。化学。 94, 1117 (1990)] 归因于这一转变。
By using a high-energy and high-brilliance synchrotron radiation source in the European Synchrotron Radiation Facility and the Photon Factory, an angle-dispersive powder x-ray diffraction study of solid oxygen has been carried out up to 116 GPa at room temperature. A new high-pressure structural transition was observed at 96 GPa and explained as an isostructural transition with a discontinuous change in lattice constants in a monoclinic cell. Metallization of oxygen reported by Desgreniers, Vohra, and Ruoff [J. Phys. Chem. 94, 1117 (1990)] is ascribed to the transition.