Effect of Cr on the generalized stacking fault energy of impure doped Ni (111) surface: a first-principles studyChunxia Li, Suihu Dang, Peide Han, Xiaoyu He and Xiaojiang LongEur. Phys. J. B, 93 8 (2020) 156DOI: https://doi.org/10.1140/epjb/e2020-10013-x