High-pressure X-ray diffraction study on α-PbF2

被引：22

作者：

Ehm, L

Knorr, K

Mädler, F

Voigtländer, H

Busetto, E

Cassetta, A

Lausi, A

Winkler, B

机构：

[1] Univ Kiel, Inst Geowissensch Mineral, D-24098 Kiel, Germany

[2] Hahn Meitner Inst Berlin GmbH, Dept IDN, D-14109 Berlin, Germany

[3] ELETTRA, Sincrotrone Trieste, I-34012 Trieste, Italy

[4] Goethe Univ Frankfurt, Inst Mineral, D-60054 Frankfurt, Germany

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2003年 / 64卷 / 06期

关键词：

high pressure; X-ray diffraction; inorganic compounds;

D O I：

10.1016/S0022-3697(02)00437-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The high-pressure behaviour of alpha-PbF2 was investigated by angular-dispersive synchrotron X-ray powder diffraction up to 6.55(8) GPa. The fit of a third-order Birch-Murnaghan equation-of-state gave the volume at zero pressure V-0 = 194.14(4)Angstrom(3) and the bulk modulus b(0) = 47.0(6) GPa with the pressure derivative b' = 7.9(4). The continuous-symmetry-measure approach has been used for the quantification of the distortion of the coordination polyhedron in alpha-PbF2 revealing an increasing distortion with pressure. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：919 / 925

页数：7

共 33 条

[1] LUMINESCENCE OF ORTHORHOMBIC PBF2 [J].