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. 2023 Mar 20;34(23).
doi: 10.1088/1361-6528/acbf55.

Structural properties of Bi/Au(110)

Egzona Neziri  1 , Wei Zhang  1 , Alexander Smogunov  2 , Andrew J Mayne  1 , Abdelkader Kara  3   4 , Yannick J Dappe  2 , Hamid Oughaddou  1   5
Affiliations

Structural properties of Bi/Au(110)

Egzona Neziri et al. Nanotechnology. .

Abstract

Atomically thin bismuth films (2D Bi) are becoming a promising research area due to their unique properties and their wide variety of applications in spintronics, electronic and optoelectronic devices. We report on the structural properties of Bi on Au(110), explored by low-energy electron diffraction (LEED), scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. At a Bi coverage lower than one monolayer (1 ML) various reconstructions are observed, we focus on Bi/Au(110)-c(2 × 2) reconstruction (at 0.5 ML) and Bi/Au(110)-(3 × 3) structure (at 0.66 ML). We propose models for both structures based on STM measurements and further confirm by DFT calculations.

Keywords: 2D bismuth; DFT; STM.

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