Thermal-energy atom-scattering study of Pb submonolayers on Cu(110)

Abstract
Submonolayers of Pb deposited at room temperature on a Cu(110) substrate undergo, with increasing Pb coverage, a continuous transition [lattice gas→c(2×2) structure], followed by a first-order transition [c(2×2)→p(4×1)]. The further transformation of the p(4×1) layer into a quasicompact hexagonal layer with p(5×1) structure occurs by elimination of domain walls, probably with intermediate formation of a p(9×1) structure.