EVIDENCE OF A NEW PHASE OF ICE ABOVE 70 GPA FROM THE ANALYSIS OF EXPERIMENTAL-DATA USING THE UNIVERSAL EQUATION OF STATE

被引：15

作者：

HAMA, J

SUITO, K

机构：

[1] Department of Materials Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka

来源：

PHYSICS LETTERS A | 1994年 / 187卷 / 04期

关键词：

D O I：

10.1016/0375-9601(94)90013-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The pressure-volume data of ice up to 128 GPa at room temperature of Hemley et al. have been analyzed on the basis of the universal equation of state by Vinet et al. Appreciable deviations from Linearity in the In H(X) versus 1-X plot have been found, which suggests the occurrence of two phase transitions at about 40 and 70 GPa. The lower one corresponds to the hydrogen-bond symmetrization transition observed in spectroscopic measurements and the higher one is a new transition not observed previously which may suggest the presence of the proton-disordered ice X' predicted by Hirsch and Holzapfel.

引用

页码：346 / 350

页数：5

共 25 条

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