Surface reconstruction at a clean Ge(110) surface was reported to show uncommon features such as the reappearance of the low-temperature phase at higher temperature and temperature-dependent faceting. In order to investigate the features in detail, in situ reflection high-energy electron diffraction observations of cleaned and annealed Ge(110) surfaces were undertaken. The reappearance phenomenon was confirmed in the present reflection high-energy electron diffraction observation, but no faceting occurred.

RHEED Study of Surface Reconstruction at Clean Ge(110) Surface. H.Noro, T.Ichikawa: Japanese Journal of Applied Physics, 1985, 24, 1288-93