| 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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Tamtögl, Anton
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023Surface properties of 1T-TaS2 and contrasting its electron-phonon coupling with TlBiTe2 from helium atom scatteringcitations
- 2023Water adsorption and dynamics on graphene and other 2D materials: computational and experimental advancescitations
- 2023Surface properties of 1T-TaS 2 and contrasting its electron-phonon coupling with TlBiTe 2 from helium atom scattering.citations
- 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
- 2019Statics and dynamics of multivalley charge density waves in Sb(111)citations
- 2017Electron-phonon coupling and surface Debye temperature of Bi2Te3(111) from helium atom scatteringcitations
- 2016Continuous Compressed Sensing for Surface Dynamical Processes with Helium Atom Scatteringcitations
- 2016Diffusion on a topological insulator surface: H2O on Bi2Te3(111)
- 2016Ballistic Diffusion in Polyaromatic Hydrocarbons on Graphitecitations
- 2016Structure and dynamics investigations of a partially hydrogenated graphene/Ni(111) surfacecitations
Places of action
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article
Surface properties of 1T-TaS2 and contrasting its electron-phonon coupling with TlBiTe2 from helium atom scattering
Abstract
We present a detailed helium atom scattering study of the charge-density wave (CDW) system and transition metal dichalcogenide 1T-TaS<jats:sub>2</jats:sub>. In terms of energy dissipation, we determine the electron-phonon (e-ph) coupling, a quantity that is at the heart of conventional superconductivity and may even “drive” phase transitions such as CDWs. The e-ph coupling of TaS<jats:sub>2</jats:sub> in the commensurate CDW phase (<jats:italic>λ</jats:italic> = 0.59 ± 0.12) is compared with measurements of the topo-logical insulator TlBiTe<jats:sub>2</jats:sub> (<jats:italic>λ</jats:italic> = 0.09 ± 0.01). Furthermore, by means of elastic He diffraction and resonance/interference effects in He scattering, the thermal expansion of the surface lattice, the surface step height, and the three-dimensional atom-surface interaction potential are determined including the electronic corrugation of 1T-TaS<jats:sub>2</jats:sub>. The linear thermal expansion coefficient is similar to that of other transition-metal dichalcogenides. The He−TaS<jats:sub>2</jats:sub> interaction is best described by a corrugated Morse potential with a relatively large well depth and supports a large number of bound states, comparable to the surface of Bi<jats:sub>2</jats:sub>Se<jats:sub>3</jats:sub>, and the surface electronic corrugation of 1T-TaS<jats:sub>2</jats:sub> is similar to the ones found for semimetal surfaces.