Bi/Au(110) 的结构性质。
Structural properties of Bi/Au(110).
机构信息
Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, F-91405 Orsay, France.
Université Paris-Saclay, CNRS, CEA, Service de Physique de l'Etat Condensé, F-91191 Gif-sur Yvette, France.
出版信息
Nanotechnology. 2023 Mar 20;34(23). doi: 10.1088/1361-6528/acbf55.
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.
由于其独特的性质以及在自旋电子学、电子和光电设备中的广泛应用，原子级薄的铋膜（2D Bi）正成为一个很有前途的研究领域。我们通过低能电子衍射（LEED）、扫描隧道显微镜（STM）和密度泛函理论（DFT）计算研究了铋在金（110）表面的结构特性。在低于单层（1 ML）的铋覆盖度下，观察到了各种重构，我们重点研究了铋/金（110）-c（2×2）重构（在 0.5 ML）和铋/金（110）-（3×3）结构（在 0.66 ML）。我们基于 STM 测量提出了这两种结构的模型，并通过 DFT 计算进一步证实。
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