First order orthorhombic-to-tetragonal phase transition in Sr0.5Ba0.5HfO3

被引：4
|
作者：
Kennedy, BJ [1 ]
Li, LQ
Garrett, RF
Kubota, Y
Kato, K
机构：
[1] Univ Sydney, Sch Chem, Ctr Heavy Met Res, Sydney, NSW 2006, Australia
[2] ANSTO, Australian Synchrotron Res Program, Menai, NSW, Australia
[3] Osaka Womens Univ, Fac Sci, Dept Environm Sci, Osaka 5900035, Japan
[4] Japan Synchrotron Radiat Res Inst, Mikazuki, Hyogo 6795198, Japan
来源：
SOLID STATE COMMUNICATIONS | 2002年 / 122卷 / 7-8期
基金：
澳大利亚研究理事会;
关键词：
metal oxides; powder diffraction; synchrotron radiation; phase transition;
D O I：
10.1016/S0038-1098(02)00173-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
High resolution synchrotron X-ray diffraction methods have been used to study the crystal structure of Sr0.5Ba0.5HfO3 (SBH). These measurements have demonstrated the co-existence of the orthorhombic (Imma) and tetragonal (I4/mcm) phases in SBH. As the sample is cooled from room temperature to 20 K, the amount of the tetragonal phase present rapidly decreases due to the first order phase transition. (C) 2002 Published by Elsevier Science Ltd.
引用
收藏
页码：355 / 358
页数：4
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