论文类型：期刊论文
合写作者：M Neupane, P Richard, Y-M Xu, K Nakayama, T Sato, T Takahashi, AV Federov, G Xu, X Dai, Z Fang, Z Wang, G-F Chen, N-L Wang, H-H Wen, H Ding
发表刊物：Physical Review B
收录刊物：SCI
学科门类：理学
一级学科：物理学
文献类型：J
卷号：83
期号：9
页面范围：094522
发表时间：2011-03-16
摘要：We have performed a systematic photoemission study of the chemical-potential shift as a function of carrier doping in a pnictide system based on BaFe 2 As 2. The experimentally determined chemical-potential shift is consistent with the prediction of a rigid band shift picture by renormalized first-principle band calculations. This leads to an electron-hole asymmetry (EHA) in the Fermi surface (FS) nesting condition due to different effective masses for different FS sheets, which can be calculated from the Lindhard function of susceptibility.