X-RAY-DIFFRACTION STUDY ON PRESSURE-INDUCED SUCCESSIVE PHASE-TRANSITION IN SELENIUM

被引：21

作者：

AKAHAMA, Y

KOBAYASHI, M

KAWAMURA, H

机构：

[1] Faculty of Science, Himeji Institute of Technology, Hyogo, 678-12, 1479-1 Kanaji, Kamigohri

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 83卷 / 04期

关键词：

D O I：

10.1016/0038-1098(92)90269-F

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

High-pressure x-ray diffraction study of hexagonal Se has revealed that it undergoes three phase transitions up to 54 GPa: to an intermediate phase (Se-II) at 14 GPa, to base-centered monoclinic(Se-III) at 23 GPa and to base-centered orthorhombic(Se-IV) at 28 GPa, in addition to the transition to a beta-Po type primitive rhombohedral lattice(Se-V) at 60 GPa reported recently. An analogy in the structural sequence of pressure-induced phase transitions was confirmed between VIb group elements, Se and Te. Strong anisotropy of the linear compressibility has proposed a layer structure for the monoclinic and the orthorhombic phases.

引用

页码：269 / 272

页数：4

共 8 条

[1]

AKAHAMA Y, IN PRESS SOLID STATE

[2] CRYSTAL-STRUCTURE OF THE HIGH-PRESSURE PHASE OF TELLURIUM [J].