Synthesis of N-type semiconductor diamonds with sulfur, boron co-doping in FeNiMnCo-C system at high pressure and high temperature

Zhang He¹, Li Shangsheng^{1, †}, Su Taichao¹, Hu Meihua¹, Ma Hongan², Jia Xiaopeng², Li Yong³

(color online) XPS S 2p spectra of diamonds in (a) Fig. 1(a), (b) Fig. 1(b), (c) Fig. 1(c), (d) Fig. 2(h).