| 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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Rotenberg, Eli
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Topics
Publications (13/13 displayed)
- 2023Orbital-selective metal skin induced by alkali-metal-dosing Mott-insulating Ca2RuO4citations
- 2023Diamondoid coating enables disruptive approach for chemical and magnetic imaging with 10nm spatial resolution
- 2022Electronic structure of $β−Al_3Mg_2$ and $Al_{13}Fe_4$ complex metallic alloyscitations
- 2022Visualizing band structure hybridization and superlattice effects in twisted MoS 2 /WS 2 heterobilayerscitations
- 2022Large-Area Intercalated 2D-Pb/Graphene Heterostructure as a Platform for Generating Spin-Orbit Torquecitations
- 2020Visualizing Orbital Content of Electronic Bands in Anisotropic 2D Semiconducting ReSe 2citations
- 2020Visualizing Orbital Content of Electronic Bands in Anisotropic 2D Semiconducting ReSe2citations
- 2019Imaging microscopic electronic contrasts at the interface of single-layer WS 2 with oxide and boron nitride substratescitations
- 2019Effects of Defects on Band Structure and Excitons in WS2 Revealed by Nanoscale Photoemission Spectroscopycitations
- 2019Tunable electronic structure in gallium chalcogenide van der Waals compoundscitations
- 2018Giant spin-splitting and gap renormalization driven by trions in single-layer WS2/h- BN heterostructurescitations
- 2013Small scale rotational disorder observed in epitaxial graphene on SiC(0001)citations
- 2000Quasicrystalline valence bands in decagonal AlNiCocitations
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article
Quasicrystalline valence bands in decagonal AlNiCo
Abstract
Quasicrystals are metallic alloys that possess perfect long-range structural order, in spite of the fact that their rotational symmetries are incompatible with long-range periodicity. The exotic structural properties of this class of materials1 are accompanied by physical properties that are unexpected for metallic alloys. Considerable progress in resolving the geometric structures of quasicrystals has been made using X-ray and neutron diffraction, and concepts such as the quasi-unit-cell model2 have provided theoretical insights. But the basic properties of the valence electronic states—whether they are extended as in periodic crystals or localized as in amorphous materials—are still largely unresolved3. Here we investigate the electronic bandstructure of quasicrystals through angle-resolved photoemission experiments on decagonal Al71.8Ni14.8Co13.4. We find that the s-p and d states exhibit band-like behaviour with the symmetry of the quasiperiodic lattice, and that the Fermi level is crossed by dispersing d-bands. The observation of free-electron-like bands, distributed in momentum space according to the surface diffraction pattern, suggests that the electronic states are not dominated by localization.