Impurity effect on surface states of Bi (111) ultrathin films

Zhu Kai^{1, 2}, Tian Dai^{1, 2}, Wu Lin^{1, 2}, Xu Jianli^{1, 2}, Jin Xiaofeng^{1, 2, †,}

The influence of surface oxidation on an 8.0-nm Bi (111) film. Temperature dependence of the film resistivity with and without oxidation is shown in panel (a), while the corresponding magnetoconductivity is plotted in panel (b).