Investigate the Nb doping position and its relationship with bulk topological superconductivity in NbxBi2Se3 by X-ray photoelectron spectra
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS [2020]
Jingfeng Wang, Fei Jiao, Di Zhang, Meixia Chang, Lingbo Cai, Yunlong Li, Cao Wang, Shugang Tan, Qiang Jing, Bo Liu, Dong Qian