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Pressure-Induced Structural Phase Transition in Gd2Ce2O7 Oxide

delete2026-04-17
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OA
AI
T
Tao Lv
J
Jia Qv
L
Limin Yan
Y
Yan Li *
强涛 封面图
强涛 (Qiang Tao)
P
Pinwen Zhu
X
Xin Wang *
DOI:10.3390/ma19081615delete
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摘要

摘要

En 中文
Gd2Ce2O7的高压结构演化已通过同步辐射X射线衍射(最高31.8 GPa)和拉曼光谱(最高38.9 GPa)进行研究。观察到在11.3 GPa处发生由立方(空间群Ia-3)到单斜(C2/m)晶体结构的高压诱导相变。该转变主要由压缩诱导的阳离子重排驱动,显著改变了局部配位环境。结构转变通过渐进的连续路径进行,并持续至最大实验压力31.8 GPa。值得注意的是,高压相在完全卸压后仍保持稳定,证实了Gd2Ce2O7不可逆的结构转变。
Keyword:
structural phase transition
the rare earth C-type structure
Gd<sub>2</sub>Ce<sub>2</sub>O<sub>7</sub>
high pressure

期刊

Materials 封面图
Materials
IF:
3.2
论文数:
5.7W
被引数:
15.1W

机构

J
jilin university
学者数:
6.1K
论文数: 1.9K
被引数: 1
引用论文

引用论文

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errWang, Chunjie; Wang, Yue; Zhang, Aihua; Cheng, Yongliang; Chi, Feng; Yu, Zhen
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