Cited by 189Topological Materials and PhenomenaGraphene research and applicationsQuantum and electron transport phenomena

Topological Transition of Dirac Points in a Microwave Experiment

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Bellec, Matthieu, Kuhl, Ulrich, Montambaux, Gilles, Mortessagne, Fabrice·2013·Physical Review Letters

Abstract

By means of a microwave tight-binding analogue experiment of a graphenelike lattice, we observe a topological transition between a phase with a pointlike band gap characteristic of massless Dirac fermions and a gapped phase. By applying a controlled anisotropy on the structure, we investigate the transition directly via density of states measurements. The wave function associated with each eigenvalue is mapped and reveals new states at the Dirac point, localized on the armchair edges. We find that with increasing anisotropy, these new states are more and more localized at the edges.

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Crossref · 10.1103/physrevlett.110.033902

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  • Recently, varieties of artificial systems have enabled the imitation and exploration of graphene and Dirac cones using the honeycomb structure with controllable parameters and observables beyond traditional graphene itself.

    “Recently, varieties of artificial systems have enabled the imitation and exploration of graphene and Dirac cones using the honeycomb structure with controllable parameters and observables [10-25] beyond traditional graphene itself where those are not easily accessible.”

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  1. [15]S. Barkhofen, M. Bellec, U. Kuhl, and F. Mortessagne, (2012), arXiv:1205.5488v2. · arXiv

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Authors
Bellec, M., Kuhl, U., Montambaux, G., & Mortessagne, F.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Université Paris-Sud (FR)
Venue
Physical Review Letters
Published
2013-01-14
Volume
110
Issue
3
Pages
033902-033902
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2024907745
Cited by
189
References
27
Citations by year
2026: 5 · 2025: 13 · 2024: 9 · 2023: 7 · 2022: 16 · 2021: 15 · 2020: 20 · 2019: 10 · 2018: 11 · 2017: 12 · 2016: 19 · 2015: 21 · 2014: 14 · 2013: 17
FWCI
12.19
Type
journal article
Language
en
Open access
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • HAL (submittedVersion, other-oa)
  • HAL (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
  • Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum and electron transport phenomena
Keywords
Dirac point, topological phase transition, massless Dirac fermions, tight-binding model, microwave experiments, anisotropy, density of states, edge states, armchair edge, band gap

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