Journal Article

PUBDB-2016-03151

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Germanene: a Novel Two-Dimensional Germanium Allotrope Akin to Graphene and Silicene

Dávila, M. E. (Corresponding author)Extern* ; Xian, L. ; Cahangirov, S. ; Rubio, A. (Corresponding author)CFEL*MPG* ; Le Lay, G.Extern*

2014
Dt. Physikalische Ges. [Bad Honnef]

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Please use a persistent id in citations: doi:10.1088/1367-2630/16/9/095002

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 $\sqrt{3}$ × $\sqrt{3}$ $R$(30$^\circ$) germanene layer in conjunction with a $\sqrt{ 7 } \times \sqrt{ 7 } $R$(19.1$^{\circ}$ Au(111) supercell, presenting compelling evidence of the synthesis of the germaniumbased cousin of graphene on gold.

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Contributing Institute(s):

1. Forschungsgruppe für strukturelle Dynamik (MPSD)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)
2. 2D-NANOLATTICES - Strongly anisotropic Graphite-like semiconductor/dielectric 2D nanolattices (270749) (270749)
3. DYNAMO - Dynamical processes in open quantum systems: pushing the frontiers of theoretical spectroscopy (267374) (267374)
4. CRONOS - Time dynamics and ContROl in naNOStructures for magnetic recording and energy applications (280879) (280879)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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