Xiao-Peng Hu1,2,3, Rui Zhu1,3, Jun Xu1,3, Shuai-Hua Ji2,3**, Xi Chen2,3, Qi-Kun Xue2,3, Da-Peng Yu1,3
1State Key Laboratory for Mesoscopic Physics and Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871 2State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084 3Collaborative Innovation Center of Quantum Matter, Beijing 100084
Abstract：We study the growth of Ag on Pb island surface with low temperature scanning tunnelling microscopy. Two growth modes, the subsurface island mode and the surface alloy mode, are observed on the substrate at room temperature and at 100 K, respectively. In the surface alloy mode, the perfect alloy AgPb$_2$ is formed on the Pb island surface after annealing. The two growth modes at different substrate temperatures are attributed to the existence of an exchange barrier of Ag atoms on the Pb island surface. The modulation of the exchange barrier by the quantum well states is also observed on the Pb island.
. [J]. 中国物理快报, 2016, 33(07): 78101-078101.
Xiao-Peng Hu, Rui Zhu, Jun Xu, Shuai-Hua Ji, Xi Chen, Qi-Kun Xue, Da-Peng Yu. Growth of Ag on Pb Island with Si(111) Substrate. Chin. Phys. Lett., 2016, 33(07): 78101-078101.
2016, Vol. 33 
