Characterization of the Edge States in ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
Characterization of the Edge States in Colloidal Bi<sub>2</sub>Se<sub>3</sub> Platelets
Auteur(s) :
Moes, Jesper [Auteur]
Debye Institute for Nanomaterials Science
Vliem, Jara [Auteur]
Debye Institute for Nanomaterials Science
de Melo, Pedro [Auteur]
Universiteit Utrecht / Utrecht University [Utrecht]
Wigmans, Thomas [Auteur]
Debye Institute for Nanomaterials Science
Botello-Méndez, Andrés [Auteur]
Debye Institute for Nanomaterials Science
Mendes, Rafael [Auteur]
Debye Institute for Nanomaterials Science
van Brenk, Ella [Auteur]
Debye Institute for Nanomaterials Science
Swart, Ingmar [Auteur]
Universiteit Utrecht / Utrecht University [Utrecht]
Maisel Licerán, Lucas [Auteur]
Debye Institute for Nanomaterials Science
Stoof, Henk [Auteur]
Debye Institute for Nanomaterials Science
Delerue, Christophe [Auteur]
Physique - IEMN [PHYSIQUE - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Zanolli, Zeila [Auteur]
Debye Institute for Nanomaterials Science
Vanmaekelbergh, Daniel [Auteur correspondant]
Debye Institute for Nanomaterials Science
Universiteit Utrecht / Utrecht University [Utrecht]
Debye Institute for Nanomaterials Science
Vliem, Jara [Auteur]
Debye Institute for Nanomaterials Science
de Melo, Pedro [Auteur]
Universiteit Utrecht / Utrecht University [Utrecht]
Wigmans, Thomas [Auteur]
Debye Institute for Nanomaterials Science
Botello-Méndez, Andrés [Auteur]
Debye Institute for Nanomaterials Science
Mendes, Rafael [Auteur]
Debye Institute for Nanomaterials Science
van Brenk, Ella [Auteur]
Debye Institute for Nanomaterials Science
Swart, Ingmar [Auteur]
Universiteit Utrecht / Utrecht University [Utrecht]
Maisel Licerán, Lucas [Auteur]
Debye Institute for Nanomaterials Science
Stoof, Henk [Auteur]
Debye Institute for Nanomaterials Science
Delerue, Christophe [Auteur]
Physique - IEMN [PHYSIQUE - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Zanolli, Zeila [Auteur]
Debye Institute for Nanomaterials Science
Vanmaekelbergh, Daniel [Auteur correspondant]
Debye Institute for Nanomaterials Science
Universiteit Utrecht / Utrecht University [Utrecht]
Titre de la revue :
Nano Letters
Pagination :
5110 - 5116
Éditeur :
American Chemical Society
Date de publication :
2024
ISSN :
1530-6984
Mot(s)-clé(s) en anglais :
Edge state
Bismuth selenide nanoplatelets
Scanning tunneling spectroscopy
Topological insulator
Density functional theory
Quantum spin Hall insulator
Bismuth selenide nanoplatelets
Scanning tunneling spectroscopy
Topological insulator
Density functional theory
Quantum spin Hall insulator
Discipline(s) HAL :
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Résumé en anglais : [en]
The remarkable development of colloidal nanocrystals with controlled dimensions and surface chemistry has resulted in vast optoelectronic applications. But can they also form a platform for quantum materials, in which ...
Lire la suite >The remarkable development of colloidal nanocrystals with controlled dimensions and surface chemistry has resulted in vast optoelectronic applications. But can they also form a platform for quantum materials, in which electronic coherence is key? Here, we use colloidal, two-dimensional Bi2Se3 crystals, with precise and uniform thickness and finite lateral dimensions in the 100 nm range, to study the evolution of a topological insulator from three to two dimensions. For a thickness of 4–6 quintuple layers, scanning tunneling spectroscopy shows an 8 nm wide, nonscattering state encircling the platelet. We discuss the nature of this edge state with a low-energy continuum model and ab initio GW-Tight Binding theory. Our results also provide an indication of the maximum density of such states on a device.Lire moins >
Lire la suite >The remarkable development of colloidal nanocrystals with controlled dimensions and surface chemistry has resulted in vast optoelectronic applications. But can they also form a platform for quantum materials, in which electronic coherence is key? Here, we use colloidal, two-dimensional Bi2Se3 crystals, with precise and uniform thickness and finite lateral dimensions in the 100 nm range, to study the evolution of a topological insulator from three to two dimensions. For a thickness of 4–6 quintuple layers, scanning tunneling spectroscopy shows an 8 nm wide, nonscattering state encircling the platelet. We discuss the nature of this edge state with a low-energy continuum model and ab initio GW-Tight Binding theory. Our results also provide an indication of the maximum density of such states on a device.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Projet Européen :
Source :
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