Incommensurate structure of phosphorus phase IV
Incommensurate structure of phosphorus phase IV
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DOI：
10.1103/physrevlett.98.175501
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发表时间：
2007-04-27
影响因子：
8.6
通讯作者：
Honda, Kazumasa
中科院分区：
文献类型：
--
作者：
Fujihisa, Hiroshi;Akahama, Yuichi;Honda, Kazumasa
在室温和高压下，磷有六种已知相。只有 107 GPa 到 137 GPa 之间存在的 IV 相的结构仍未解决。我们进行了粉末X射线衍射实验和Rietveld分析，成功确定其结构为仅1个原子位置位点的不通约调制结构。卤素和硫属元素的高压相先前已被证明具有类似的调制结构；然而，磷IV相与它们不同，被证明是第三种情况。
There are six known phases for phosphorus at room temperature under high pressure. Only the structure of phase IV, which exists from 107 GPa to 137 GPa, remains unsolved. We performed a powder x-ray diffraction experiment and a Rietveld analysis and successfully determined its structure to be an incommensurately modulated structure by only 1 site of atomic position. High-pressure phases of halogens and chalcogens have previously been shown to have a similar modulated structure; however, phosphorus phase IV is different from them and was shown to be the third case.