Synchrotron x-ray study of the structures and phase transitions of monolayer xenon on single-crystal graphite.
Synchrotron x-ray study of the structures and phase transitions of monolayer xenon on single-crystal graphite.
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单晶石墨上单层氙的结构和相变的同步辐射X射线研究。
DOI：
10.1103/physrevb.40.4797
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Suematsu
中科院分区：
文献类型：
--
作者：
Hong;Peters;Mak;Birgeneau;Horn;Suematsu
用高分辨同步辐射X射线散射研究了石墨单晶上固体氙单分子膜的相和相变。当温度降低时，出现一系列无公度的固相（排列{r箭头}旋转{r箭头}重入排列）。这一序列之后是一个递增相称的过渡。零温平均场理论能够解释C-IC跃迁，但不能解释重入转动跃迁。利用零温弛豫模拟方法计算了吸附势和畴壁宽度。
The phases and phase transitions of solid xenon monolayers on a graphite single crystal were investigated using high-resolution synchrotron x-ray scattering. As the temperature is lowered a sequence of incommensurate solid phases (aligned{r arrow}rotated{r arrow}reentrant aligned) occurs. This sequence is followed by an incommensurate-commensurate transition. Zero-temperature mean-field theories are able to explain the C-IC transition but not the reentrant rotational transitions. The corrugation of the adsorption potential and the width of domain walls are estimated using relaxation simulations at zero temperature.