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

Abstract : 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.
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Submitted on : Wednesday, February 27, 2019 - 10:53:13 AM
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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, Elsevier, In press, ⟨10.1016/j.susc.2019.02.007⟩. ⟨hal-02050455⟩

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