| People | Locations | Statistics |
|---|---|---|
| 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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Wolverson, Daniel
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Porous Structure Enhances the Longitudinal Piezoelectric Coefficient and Electromechanical Coupling Coefficient of Lead-Free (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3citations
- 2024Spin-order-dependent magneto-elastic interactions in two dimensional antiferromagnetic MnPSe3 observed through Raman spectroscopycitations
- 2024Porous structure enhances the longitudinal piezoelectric coefficient and electromechanical coupling coefficient of lead‐free (Ba 0.85 Ca 0.15 )(Zr 0.1 Ti 0.9 )O 3citations
- 2023Exploring the Charge Density Wave Phase of 1T-TaSe2citations
- 2020Excitonic and lattice contributions to the charge density wave in 1T-TiSe2 revealed by a phonon bottleneckcitations
- 2020Phase behavior and substitution limit of mixed cesium-formamidinium lead triiodide perovskitescitations
- 2018Investigating nanostructures in carbon fibres using Raman spectroscopycitations
- 2017Strain-induced phonon shifts in tungsten disulfide nanoplatelets and nanotubescitations
- 2017Interfacial control in graphene- and transition metal dichalcogenide-polymer nanocomposites
- 2017Electronic band structure of ReS 2 by high-resolution angle-resolved photoemission spectroscopycitations
- 2017Electronic bandstructure and van der Waals coupling of ReSe2 revealed by high-resolution angle-resolved photoemission spectroscopycitations
- 2017Electronic band structure of ReS2 by high-resolution angle-resolved photoemission spectroscopycitations
- 2016Strain-induced phonon shifts in tungsten disulfide nanoplatelets and nanotubescitations
- 2016A comparison of the micromechanics of graphene- and transition metal dichalcogenide-nanocomposites
- 2014Raman spectra of monolayer, few-layer, and bulk ReSe 2 :An anisotropic layered semiconductorcitations
- 2014Raman spectra of monolayer, few-layer, and bulk ReSe2citations
- 2013Investigation of the sp3 structure of carbon fibres uUsing Uv-Raman spectroscopycitations
- 2012Porous silicon nanocrystals in a silica aerogel matrixcitations
- 2010Excitons in motion in II-VI semiconductorscitations
- 2010Carbon nanoparticle surface functionalisation: converting negatively charged sulfonate to positively charged sulfonamidecitations
- 2008Coherent Raman detected electron spin resonance spectroscopy of metalloproteins: linking electron spin resonance and magnetic circular dichroismcitations
- 2008Thin-film modified electrodes with reconstituted cellulose-PDDAC films for the accumulation and detection of triclosancitations
- 2000Band structure parameters of quaternary phosphide semiconductor alloys investigated by magneto-optical spectroscopy
Places of action
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article
Electronic band structure of ReS2 by high-resolution angle-resolved photoemission spectroscopy
Abstract
The rhenium-based transition metal dichalcogenides (TMDs) are atypical of the TMD family due to their highly anisotropic crystalline structure and are recognized as promising materials for two-dimensional heterostructure devices. The nature of the band gap (direct or indirect) for bulk, few-, and single-layer forms of ReS<sub>2 </sub>is of particular interest, due to its comparatively weak interplanar interaction. However, the degree of interlayer interaction and the question of whether a transition from indirect to direct gap is observed on reducing thickness (as in other TMDs) are controversial. We present a direct determination of the valence band structure of bulk ReS<sub>2</sub> using high-resolution angle-resolved photoemission spectroscopy. We find a clear in-plane anisotropy due to the presence of chains of Re atoms, with a strongly directional effective mass which is larger in the direction orthogonal to the Re chains (2.2 m<sub>e</sub>) than along them (<br/>1.6 m<sub>e</sub>). An appreciable interplane interaction results in an experimentally measured difference of ≈100−200 meV between the valence band maxima at the <br/>Z point (0,0,1/2) and the Γ point (0,0,0) of the three-dimensional Brillouin zone. This leads to a direct gap at Z and a close-lying but larger gap at Γ, implying that bulk ReS<sub>2 </sub>is marginally indirect. This may account for recent conflicting transport and photoluminescence measurements and the resulting uncertainty about the nature of the band gap in this material.