AES, LEED and scanning electron microscopy analysis performed on the Pb/Ge(111) system under UHV lead to the following main results. The Pb/Ge(111) system exhibits the Stranski-Krastanov growth mode. The stoichiometry of the complete 2D layer is one. This monolayer undergoes a reversible phase transformation √3 × √3 ⇄ 1 × 1 at around 300°C. The value of the bonding energy of one lead atom on (111)Ge is found to be equal to φPb-Ge= 31 ± 2 kcal mol. The adhesion energy of a 3D lead crystallite on (111)Ge has been estimated to be β = 918 ± 9 erg cm2. © 1983.
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