GROWTH OFAg–OROWS DURING OXIDATION OFAg(110)SURFACE

D. Pagnotta, S. Rusponi, H. Roder, C. Boragno and U. Valbusa
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D. Pagnotta: Centro di Fisica delle Superfici e delle Basse, Temperature del CNR e INFM-Unita' di Genova, Dipartimento di Fisica, via Dodecaneso 33, 16146 Genova, Italy
S. Rusponi: Centro di Fisica delle Superfici e delle Basse, Temperature del CNR e INFM-Unita' di Genova, Dipartimento di Fisica, via Dodecaneso 33, 16146 Genova, Italy
H. Roder: Centro di Fisica delle Superfici e delle Basse, Temperature del CNR e INFM-Unita' di Genova, Dipartimento di Fisica, via Dodecaneso 33, 16146 Genova, Italy
C. Boragno: Centro di Fisica delle Superfici e delle Basse, Temperature del CNR e INFM-Unita' di Genova, Dipartimento di Fisica, via Dodecaneso 33, 16146 Genova, Italy
U. Valbusa: Centro di Fisica delle Superfici e delle Basse, Temperature del CNR e INFM-Unita' di Genova, Dipartimento di Fisica, via Dodecaneso 33, 16146 Genova, Italy

Surface Review and Letters (SRL), 1997, vol. 04, issue 06, 1321-1324

Abstract: The growth of Ag–O rows on a Ag(110) surface has been studied at room temperature by using a UHV-STM. The evolution of the typical (n×1) (n=8,7,…,2) structures has been analyzed as a function ofO2exposure. At the beginning, the (Ag–O) rows are randomly distributed on the surface. Increasing the exposure, many (n×1) phases coexist. The evolution of the system is due to a global rearrangement of the existing rows, which can move along the$\langle 1{\bar 1}0\rangle$direction. A model for this mechanism is proposed.

Date: 1997
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DOI: 10.1142/S0218625X97001747

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