对称不匹配的Ag(100)上的稳健谢尔宾斯基三角形分形
Robust Sierpiński triangle fractals on symmetry-mismatched Ag(100).
作者信息
Zhang Xue, Li Na, Liu Liwei, Gu Gaochen, Li Chao, Tang Hao, Peng Lianmao, Hou Shimin, Wang Yongfeng
机构信息
Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China.
CEMES-CNRS, Boîte Postale 94347, 31055 Toulouse, France.
出版信息
Chem Commun (Camb). 2016 Aug 18;52(69):10578-81. doi: 10.1039/c6cc04879j.
Sierpiński triangle fractals were constructed on both Ag(111) and symmetry-mismatched fourfold Ag(100) surfaces through chemical reaction between H3PH molecules and Fe atoms under vacuum. Density functional theory calculations revealed that the fractals were stabilized by the strong coordination interaction between Fe and O atoms. In comparison, pure H3PH molecules formed fractals via moderately strong hydrogen bonds only on Ag(111), not on Ag(100).
通过在真空中H₃PH分子与Fe原子之间的化学反应，在Ag(111)和对称性不匹配的四重Ag(100)表面上构建了谢尔宾斯基三角形分形。密度泛函理论计算表明，分形通过Fe和O原子之间的强配位相互作用得以稳定。相比之下，纯H₃PH分子仅通过适度强的氢键在Ag(111)上形成分形，而在Ag(100)上则不能形成。
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