| 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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Ernst, Wolfgang E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Photoemission Electron Microscopy of Blue and UV Surface Plasmons on Nanostructured Aluminum Filmscitations
- 2022Mixed-metal nanoparticlescitations
- 2021Material Properties Particularly Suited to be Measured with Helium Scattering: Selected Examples from 2D Materials, van der Waals Heterostructures, Glassy Materials, Catalytic Substrates,Topological Insulators and Superconducting Radio Frequency Materialscitations
- 2021Material properties particularly suited to be measured with helium scattering: selected examples from 2D materials, van der Waals heterostructures, glassy materials, catalytic substrates, topological insulators and superconducting radio frequency materialscitations
- 2020Helium droplet assisted synthesis of plasmonic Ag@ZnO core@shell nanoparticlescitations
- 2020Ultrashort XUV pulse absorption spectroscopy of partially oxidized cobalt nanoparticlescitations
- 2019Statics and dynamics of multivalley charge density waves in Sb(111)citations
- 2019Ultra-thin h-BN substrates for nanoscale plasmon spectroscopycitations
- 2019On the passivation of iron particles at the nanoscalecitations
- 2019The impact of swift electrons on the segregation of Ni-Au nanoalloyscitations
- 2019Effects of the Core Location on the Structural Stability of Ni-Au Core-Shell Nanoparticlescitations
- 2018Stability of Core-Shell Nanoparticles for Catalysis at Elevated Temperaturescitations
- 2017Electron-phonon coupling and surface Debye temperature of Bi2Te3(111) from helium atom scatteringcitations
- 2017Electron-phonon coupling and surface Debye temperature of Bi2Te3(111) from helium atom scatteringcitations
- 2017Thermally induced breakup of metallic nanowirescitations
- 2016Formation of bimetallic clusters in superfluid helium nanodroplets analysed by atomic resolution electron tomography
- 2016Diffusion on a topological insulator surface: H2O on Bi2Te3(111)
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article
Electron-phonon coupling and surface Debye temperature of Bi2Te3(111) from helium atom scattering
Abstract
We have studied the topological insulator Bi2Te3(111) by means of helium atom scattering. The average electron-phonon coupling λ of Bi2Te3(111) is determined by adapting a recently developed quantum-theoretical derivation of the helium scattering probabilities to the case of degenerate semiconductors. Based on the Debye-Waller attenuation of the elastic diffraction peaks of Bi2Te3(111), measured at surface temperatures between 110 and 355K, we find λ to be in the range of 0.04–0.11. This method allows us to extract a correctly averaged λ and to address the discrepancy between previous studies. The relatively modest value of λ is not surprising even though some individual phonons may provide a larger electron-phonon interaction. Furthermore, the surface Debye temperature of Bi2Te3(111) is determined as ΘD=(81±6)K. The electronic surface corrugation was analyzed based on close-coupling calculations. By using a corrugated Morse potential a peak-to-peak corrugation of 9% of the lattice constant is obtained.