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

## TL;DR

This study investigates the atomic structure of a zinc monolayer on silver substrates using AES, LEED, and STM, revealing specific Moiré patterns and rotated Zn layers with distinct superstructures.

## Contribution

It provides detailed structural characterization of Zn monolayers on Ag(111) and Ag(110), including rotation angles and superstructure formations, using combined surface analysis techniques.

## Key findings

- Zn monolayers form close-packed structures covering entire substrates.
- Distinct Moiré patterns are observed on both faces.
- Zn layers are rotated relative to the substrates, forming specific superstructures.

## 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 Moir{\'e} 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 $1.5^\circ$ on the Ag(111) face and of about $4.5^\circ$ on the Ag(110) face giving rise respectively to ($\sqrt{156}\times\sqrt{156})R18^\circ$ and c(12x6) superstructures.

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Source: https://tomesphere.com/paper/1902.10960