Fig. 2From: Role of Arsenic During Aluminum Droplet Etching of Nanoholes in AlGaAsAlGaAs surface reconstructions measured with RHEED along [110] and [ −110] azimuths at T=600 °C after minimization of the As flux at t=0 s. a (2 ×4) reconstruction at t=0 s, P As=1×10−5 Torr. b (3 ×1) reconstruction at 0 s <t<t c , P As≃2×10−8 Torr. c (4 ×2) reconstruction at t>t c , P As≃1×10−8 TorrBack to article page