Comment:
ZnSe(100)-(1x1), Se-saturated structure, ZnSe(100)c(2x2), Zn-rich structure, and ZnSe(100)-(2x1), Se-rich structure. Branching ratio = 0.65. Doping levels are 2E18 cm-3 for n-type ZnSe (Cl-doped) and 5E17 for p-type (N-doped). The samples were Se-decapped at ~423 K and then at 823 K.