| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Oughaddou, Hamid
Cergy-Pontoise University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023Dirac Fermions in Blue Phosphorene Monolayercitations
- 2023Dirac Fermions in Blue Phosphorene Monolayercitations
- 2023First steps of silicene growth on an insulating thin-film: effect of the substrate temperature
- 2023First steps of silicene growth on an insulating thin-film: effect of the substrate temperature
- 2023Structural properties of Bi/Au(110)
- 2021Electron beam analysis induces Cl vacancy defects in a NaCl thin filmcitations
- 2020Growth and characterization of nickel oxide ultra-thin filmscitations
- 2020Growth and characterization of nickel oxide ultra-thin filmscitations
- 2020Evidence of new 2D material: Cu<sub>2</sub>Tecitations
- 2020Phosphorus Pentamers: Floating Nanoflowers form a 2D Networkcitations
- 2020Phase transition and thermal stability of epitaxial PtSe 2 nanolayer on Pt(111)citations
- 2020Evidence of new 2D material: Cu 2 Tecitations
- 2019Unoccupied electronic band structure of pentagonal Si nanoribbons on Ag(110)citations
- 2017Reaction kinetics of ultrathin NaCl films on Ag(001) upon electron irradiationcitations
- 2017Reaction kinetics of ultrathin NaCl films on Ag(001) upon electron irradiationcitations
- 2012A review on silicene - New candidate for electronicscitations
- 2010Inter-diffusion of cobalt and silicon through an ultra thin aluminum oxide layercitations
- 2010Inter-diffusion of cobalt and silicon through an ultra thin aluminum oxide layercitations
- 2009Growth of ultrathin film aluminum oxide on Ag(111)citations
Places of action
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article
Evidence of new 2D material: Cu<sub>2</sub>Te
Abstract
The number of two-dimensional (2D) materials has grown steadily since the discovery of graphene. Each new 2D material demonstrated unusual physical properties offering a large flexibility in their tailoring for high-tech applications. Here, we report on the formation and characterization of an uncharted 2D material: 'Cu 2 Te alloy monolayer on Cu(111) surface'. We have successfully grown a 2D binary Te-Cu alloy using a straightforward approach based on chemical deposition method. Low electron energy diffraction (LEED) and scanning tunneling microscopy (STM) results reveal the existence of a well-ordered alloy monolayer characterized by (√3 × √3)R30 • superstructure, while the x-ray photoemission spectroscopy (XPS) measurements indicate the presence of single chemical environment of the Te atoms associated with the Te-Cu bonding. Analysis of the valence band properties by angle resolved photoemission spectroscopy (ARPES); in particular the electronic states close to the Fermi level suggests a strong hybridization between Te and Cu electronic states leading to an appearance of new dispersive bands localized at the surface alloy, which is confirmed by first-principles calculations. These bands are strongly influenced by the surface reconstruction and undergo a back-folding at the boundaries of the reduced surface Brillouin zone (SBZ). More interesting, a band gap of about 0.91 eV and a Rashba splitting in the conduction band are obtained. These findings taken together clearly prove the presence of 2D-type electron system within the Cu 2 Te alloy layer, which is promising for spintronic application.