Surface structures of lead deposited on Mo(110) surface

The surface structures of lead deposited on an Mo(110) surface were studied by means of reflection high-energy electron diffraction (RHEED) and scanni ng electron microscopy (SEM). Four kinds of surface structure were observed . Three surface structures appeared at nearly one monolayer of lead coverag e at room temperature. All surface structures have large unit cells that co incide with the atomic arrangement of the molybdenum substrate. The growth modes of the Pb/Mo(110) system are the Frank-van der Merwe growth mode at r oom temperature and the Stranski-Krastanov growth mode at high temperatures . The epitaxial orientation relationship of the Pb/Mo(110) system is [(1) o ver bar 10](Pb)parallel to[001](Mo), (111)(Pb)parallel to(110)(Mo). (C) 200 0 Elsevier Science B.V. All rights reserved.