Rietveld analysis of strontium titanate in the Muller state

Rietveld analysis of strontium titanate in the Muller state
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DOI:
10.1088/0953-8984/8/19/021
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发表时间:
1996-05-06
影响因子:
2.7
通讯作者:
Roisnel, T
Roisnel, T
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Kiat, JM;Roisnel, T

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我们报告了钛酸锶在1.5 K以下的中子和x射线里特费尔德分析。结果没有显示任何补充结构相变或局部冻结极性有序的证据。这些结果补充表明,在极低温度下,钛酸锶应该只显示出静态四方结构的弱局部修饰,而在衍射图上没有强的特征。
We report a neutron and x-ray Rietveld analysis of strontium titanate down to 1.5 K. The results do not show evidence for any supplementary structural phase transition or local frozen polar ordering. These results are a supplementary indication that at very low temperature strontium titanate should display only weak local modifications of the static tetragonal structure with no strong signature in the diffraction pattern.