Pressure-induced orthorhombic to rhombohedral phase transition in LaGaO3

被引：36

作者：

Kennedy, BJ ^{[1
]}

Vogt, T

Martin, CD

Parise, JB

Hriljac, JA

机构：

[1] Univ Sydney, Sch Chem, Ctr Heavy Met Res, Sydney, NSW 2006, Australia

[2] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[3] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA

[4] Univ Birmingham, Sch Chem Sci, Birmingham B15 2TT, W Midlands, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2001年 / 13卷 / 48期

关键词：

D O I：

10.1088/0953-8984/13/48/101

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The influence of pressure on the crystal structure of LaGaO3 has been studied using synchrotron x-ray diffraction. At atmospheric pressure LaGaO3 has an orthorhombic structure in Pnma and undergoes a first-order phase transition to a rhombohedral structure near 2.5 GPa. The transition is reversible and the orthorhombic structure is recovered upon releasing the pressure below 2 GPa.

引用

页码：L925 / L930

页数：6

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