HIGH-PRESSURE X-RAY-DIFFRACTION ON POTASSIUM AND RUBIDIUM UP TO 50-GPA

被引：71

作者：

WINZENICK, M ^{[1
]}

VIJAYAKUMAR, V ^{[1
]}

HOLZAPFEL, WB ^{[1
]}

机构：

[1] BHABHA ATOM RES CTR,PURNIMA LABS,HIGH PRESSURE PHYS SECT,BOMBAY 400085,MAHARASHTRA,INDIA

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.50.12381

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of pressure on structural properties of potassium and rubidium is studied with diamond-anvil cells by energy-dispersive x-ray diffraction with synchrotron radiation at room temperature up to 50 GPa. The K III structure of potassium at pressures above 23 GPa is indexed by the use of a tetragonal-body-centered lattice (tI16) with 16 atoms in the unit cell. A new phase is found for rubidium above 46 GPa. Equation of state data for these heavy alkali metals are presented and compared with earlier data for cesium. © 1994 The American Physical Society.

引用

页码：12381 / 12385

页数：5

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