Growth of an Fe buckled honeycomb lattice on Be(0001)

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science Pub Date : 2024-09-13 DOI:10.1016/j.susc.2024.122609

Hermann Osterhage , Abid H. Khan , Karoline Oetker , Radek Dao , Samaneh Setayandeh , Roland Wiesendanger , Patrick Burr , Stefan Krause

引用次数: 0

Abstract

The growth of Fe on a clean Be(0001) surface is investigated on the atomic scale by a combined scanning tunneling microscopy and density functional theory study. At low Fe coverage, the nucleation of terraced nanoislands with a disordered surface is observed experimentally. Increasing the Fe coverage results in the growth of extended films exhibiting a well-ordered p

(2 \times 2)

superstructure. Density functional theory is applied to investigate the growth of Fe on a Be(0001) surface from individual atoms to extended films. Our studies provide strong evidence for the formation of a buckled honeycomb Fe lattice that is embedded in two Be planes with Kagome and triangular symmetry, respectively.

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在 Be(0001) 上生长铁扣蜂窝晶格

通过扫描隧道显微镜和密度泛函理论的综合研究，在原子尺度上对洁净的 Be(0001) 表面上铁的生长进行了研究。在低铁覆盖率下，实验观察到表面无序的阶梯状纳米岛的成核。增加铁的覆盖率会导致扩展薄膜的生长，并呈现出井然有序的 p(2×2) 超结构。应用密度泛函理论研究了 Fe 在 Be(0001) 表面从单个原子到扩展薄膜的生长过程。我们的研究有力地证明了倒扣蜂窝状铁晶格的形成，该晶格分别嵌入具有卡戈米对称性和三角形对称性的两个 Be 平面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surface Science 化学-物理：凝聚态物理

CiteScore

3.30

自引率

5.30%

发文量

137

审稿时长

25 days

期刊介绍： Surface Science is devoted to elucidating the fundamental aspects of chemistry and physics occurring at a wide range of surfaces and interfaces and to disseminating this knowledge fast. The journal welcomes a broad spectrum of topics, including but not limited to: • model systems (e.g. in Ultra High Vacuum) under well-controlled reactive conditions • nanoscale science and engineering, including manipulation of matter at the atomic/molecular scale and assembly phenomena • reactivity of surfaces as related to various applied areas including heterogeneous catalysis, chemistry at electrified interfaces, and semiconductors functionalization • phenomena at interfaces relevant to energy storage and conversion, and fuels production and utilization • surface reactivity for environmental protection and pollution remediation • interactions at surfaces of soft matter, including polymers and biomaterials. Both experimental and theoretical work, including modeling, is within the scope of the journal. Work published in Surface Science reaches a wide readership, from chemistry and physics to biology and materials science and engineering, providing an excellent forum for cross-fertilization of ideas and broad dissemination of scientific discoveries.