Germanene: a novel two-dimensional germanium allotrope akin to graphene and silicene
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TLDR
In this article, an atom-thin, ordered, two-dimensional multi-phase film was grown in situ through germanium molecular beam epitaxy using a gold surface as a substrate.Abstract:
We have grown an atom-thin, ordered, two-dimensional multi-phase film in situ through germanium molecular beam epitaxy using a gold (111) surface as a substrate. Its growth is similar to the formation of silicene layers on silver (111) templates. One of the phases, forming large domains, as observed in scanning tunneling microscopy, shows a clear, nearly flat, honeycomb structure. Thanks to thorough synchrotron radiation core-level spectroscopy measurements and advanced density functional theory calculations we can identify it as a ?3????3 R(30?) germanene layer in conjunction with a ?7????7 R(19.1?) Au(111) supercell, presenting compelling evidence of the synthesis of the germanium-based cousin of graphene on gold.read more
Citations
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References
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TL;DR: This work provides a method to fabricate high-quality silicene and an explanation for the formation of the buckled silicenes sheet.
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Stability and Exfoliation of Germanane: A Germanium Graphane Analogue
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Valley-polarized metals and quantum anomalous Hall effect in silicene.
TL;DR: It is remarkable that a topological quantum phase transition can be induced simply by changing electric field in a single silicene sheet.
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Buckled Germanene Formation on Pt(111)
Linfei Li,Shuangzan Lu,Jinbo Pan,Zhihui Qin,Yuqi Wang,Yeliang Wang,Gengyu Cao,Shixuan Du,Hong-Jun Gao +8 more
TL;DR: The resulting high-quality germanenes enables researchers to explore the fundamentals of germanene and its potential applications.
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Structure of Silicene Grown on Ag(111)
Chun-Liang Lin,Ryuichi Arafune,Kazuaki Kawahara,N. Tsukahara,Emi Minamitani,Yousoo Kim,Noriaki Takagi,Maki Kawai +7 more
TL;DR: In this paper, the structure of silicene, the two-dimensional honeycomb sheet of Si, grown on Ag(111), was investigated by scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) combined with density functional theory (DFT) calculation.
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