[C-4-2] In Situ Observation of MBE-Grown GaAs(001) Surfaces Using Surface Photo-Absorption and Reflectance Difference Kunihiko UWAI, Yoshiharu YAMAUCHI, Naoki KOBAYASHI (1.NTT Basic Research Laboratories) https://doi.org/10.7567/SSDM.1993.C-4-2