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Updated: Jun 25, 2025

Atomically Defined Templates for Epitaxial Growth of Complex Oxide Thin Films

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Published on: December 4, 2014

Lead overlayer dynamics on Ni(111).

Svetlana D Borisova¹, Sergey V Eremeev¹, Evgueni V Chulkov^2,3

¹Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, 634055 Tomsk, Russia. eremeev@ispms.tsc.ru.

Physical Chemistry Chemical Physics : PCCP

|May 28, 2024

Summary

This summary is machine-generated.

This study investigates ultrathin lead films on Ni(111) surfaces. Substrate dynamics play a crucial role in the stability of lead adsorption at submonolayer coverages.

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Area of Science:

Surface science
Materials science
Condensed matter physics

Background:

Ultrathin films are technologically important and studied using various methods.
Adsorption of films creates new electron states and vibrational modes.
Surface atom dynamics offer insights into local geometry and chemical bonding.

Purpose of the Study:

To investigate the vibrational properties of lead (Pb) overlayers on the Ni(111) surface for the first time.
To analyze surface relaxations, phonon modes, and local density of states for different Pb coverages.
To understand the influence of substrate dynamics on the stability of the Pb/Ni(111) system.

Main Methods:

First-principles calculations were employed to study the Pb/Ni(111) system.
Analysis included surface relaxations, phonon dispersion, and local density of states.
Investigated overlayers of 1/3, 4/9, and 9/16 Pb monolayers (ML) on Ni(111).

Main Results:

Characterized vibrational properties of (3 × 3) and (4 × 4) Pb overlayers on Ni(111).
Identified adsorbate-induced electron states and vibrational modes.
Revealed that substrate dynamics significantly impact the stability of submonolayer Pb adsorption.

Conclusions:

Substrate dynamics are essential for understanding the stability of ultrathin lead films on Ni(111).
The study provides fundamental insights into the behavior of lead adsorption at the nanoscale.
Findings contribute to the development of advanced materials and surface technologies.