THE HIGH-PRESSURE PHASE OF ZINCITE

被引：94

作者：

GERWARD, L ^{[1
]}

OLSEN, JS ^{[1
]}

机构：

[1] UNIV COPENHAGEN,NIELS BOHR INST,OERSTED LAB,DK-2100 COPENHAGEN,DENMARK

来源：

JOURNAL OF SYNCHROTRON RADIATION | 1995年 / 2卷

关键词：

HIGH-PRESSURE PHASES; PHASE TRANSFORMATIONS; ENERGY-DISPERSIVE POWDER DIFFRACTION; EQUATION OF STATE; ZINCITE;

D O I：

10.1107/S0909049595009447

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Synchrotron-radiation X-ray diffraction studies of ZnO have been performed with special emphasis on the rock-salt-type high-pressure phase. The wurtzite (B4) to rock salt (B1) phase transformation is accompanied by a volume collapse of 18%, which is a very large effect. The lattice constant of the B1 phase at ambient pressure is a(0) = 4.280(4) Angstrom, and the bulk modulus is B-0 = 170(10) GPa. Comparisons are made with a recently published theoretical equation of state obtained from ab initio perturbed-ion calculations.

引用

页码：233 / 235

页数：3

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