GROWTH OF METASTABLE HIGH-ORDER COMMENSURATE OVERLAYERS OF Pb ON Cu(001)
نویسندگان
چکیده
We studied the growth and ordering of a Pb layer deposited on Cu(001) at 150 K. Contrary to the case of adsorption of Pb at room temperature, islands readily form. These islands order in a high-order commensurate structure of symmetry ( √ 61× √ 61)Rtan (
منابع مشابه
Scaling of island growth in Pb overlayers on Cu(001).
symmetry are formed. This is a high order commensurate phase with 30 atoms in the unit cell. From the measurement of the island diffraction peak profiles we find a power law for the mean island size versus coverage with an exponent n = 0.54 ± 0.03. A scaling behavior of growth is confirmed and a simple model describing island growth is presented. Due to the high degeneracy of the monolayer phas...
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