PRESSURE-INDUCED ROCK-SALT PHASE OF ALUMINUM NITRIDE - A METASTABLE STRUCTURE AT AMBIENT CONDITION

被引：203

作者：

XIA, Q

XIA, H

RUOFF, AL

机构：

[1] Department of Materials Science and Engineering, Cornell University, Ithaca

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 12期

关键词：

D O I：

10.1063/1.353435

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Energy-dispersive x-rav diffraction studies were carried out on the III-V compound aluminum nitride to 65 GPa using a synchrotron x-ray source. A pressure-induced first-order phase transition from a wurtzite structure to a rocksalt structure was observed. The first peaks of the high-pressure phase appeared at 14 GPa. On further loading of the diamond anvil cell, the wurtzite peaks disappeared by 20 GPa. After unloading the cell to atmospheric pressure, the rocksalt structure persisted. The equilibrium transformation pressure lies on the interval 0-14 GPa.

引用

页码：8198 / 8200

页数：3

共 21 条

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