Structure of a Zn monolayer on Ag(111) and Ag(110) substrates: an AES, LEED and STM study

Auger Electron Spectroscopy, Low Energy Electron Diffraction and Scanning Tunneling Microscopy have been used to study the atomic structure of a Zn monolayer deposited on Ag(111) and Ag(110) substrates at room temperature. On both faces, there is formation of a close packed monolayer of Zn covering the entire substrate surface and giving rise to specific Moiré patterns. From a comprehensive LEED and STM data analysis, we deduce that the Zn monolayer adopts a (111) structure equivalent to a pure Zn layer rotated with respect to the silver substrate, of about 1.5° on the Ag(111) face and of about 4.5° on the Ag(110) face giving rise respectively to (156x156)R18° and c(12x6) superstructures.

Mots clés

superstructure Moiré pattern Zn monolayer Ag(111) Ag(110) STM

Domaines

Science des matériaux [cond-mat.mtrl-sci]

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ArticleMoiré.pdf (1.4 Mo)

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Haik Jamgotchian : Connectez-vous pour contacter le contributeur

https://hal.science/hal-02050455

Soumis le : mercredi 27 février 2019-10:53:13

Dernière modification le : lundi 10 juin 2024-16:58:03

Archivage à long terme le : mardi 28 mai 2019-13:46:15

Dates et versions

hal-02050455 , version 1 (27-02-2019)

Identifiants

HAL Id : hal-02050455 , version 1
ARXIV : 1902.10960
DOI : 10.1016/j.susc.2019.02.007

Citer

Maradj Hicham, Carole Fauquet, Mostefa Ghamnia, Benedicte Ealet, Nabil Rochdi, et al.. Structure of a Zn monolayer on Ag(111) and Ag(110) substrates: an AES, LEED and STM study. Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, In press, ⟨10.1016/j.susc.2019.02.007⟩. ⟨hal-02050455⟩

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