NEW HIGH-PRESSURE STRUCTURAL TRANSITION OF OXYGEN AT 96 GPA ASSOCIATED WITH METALLIZATION IN A MOLECULAR-SOLID

被引:171
作者
AKAHAMA, Y
KAWAMURA, H
HAUSERMANN, D
HANFLAND, M
SHIMOMURA, O
机构
[1] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE
[2] NATL LAB HIGH ENERGY PHYS,PHOTON FACTORY,TSUKUBA,IBARAKI 305,JAPAN
关键词
D O I
10.1103/PhysRevLett.74.4690
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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. © 1995 The American Physical Society.
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页码:4690 / 4693
页数:4
相关论文
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