The InSb(001)-c(8 x 2) surface was observed by using high-resolution transmission electron microscopy in the profile-imaging geometry. All of the images observed at up to 420 C agreed well with the c(8 x 2) model reported by Kumpf et alia (2001). 1/30s real-time observations at 420C revealed that part of the sub-surface and surface layers underwent switching to and from a bulk configuration. This suggested a large anisotropy in the mean square displacement of the c(8 x 2) surface.

Direct Imaging of the InSb(001)-c(8 x 2) Surface - Evidence for Large Anisotropy of the Reconstruction. T.D.Mishima, N.Naruse, S.P.Cho, T.Kadohira, T.Osaka: Physical Review Letters, 2002, 89[27], 276105 (4pp)