One-dimensional molecular chains formed by Sierpiński triangles on Au(111)

Xue Zhang (1) , Gaochen Gu (2) , Na Li (3, 1) , Hao Wang (1) , Hao Tang (4, 5) , Yajie Zhang (2, 1) , Shimin Hou (2, 1) , Yongfeng Wang (2, 1)

1 USTB - University of Science and Technology Beijing [Beijing]
2 Peking University [Beijing]
3 ACTALIA [Villers-Bocage]
4 CEMES-SINanO - Surfaces, Interfaces et Nano-Objets
5 CEMES - Centre d'élaboration de matériaux et d'études structurales

One-dimensional molecular chains with Sierpi´nski triangles as building blocks were prepared on Au(111) and studied by low-temperature scanning tunneling microscopy. Fractal Sierpi´nski triangles were stabilized by the coordination interaction between 1,3-bi(4-pyridyl) benzene (BPyB) and Co atoms. At low coverages, Sierpi´nski triangles of high orders were observed. At high coverages, Sierpi´nski triangles formed two types of one-dimensional molecular chains. The high coverages and matching between molecular size and surface lattices are attributed to the formation of molecular chains.

Domaines: Autre [cond-mat.other]

Xue Zhang, Gaochen Gu, Na Li, Hao Wang, Hao Tang, et al.. One-dimensional molecular chains formed by Sierpiński triangles on Au(111). RSC Advances, 2018, 8 (4), pp.1852 - 1856. ⟨10.1039/C7RA11825B⟩. ⟨hal-01919125⟩