Disordered graphene and boron nitride in a microwave tight-binding analog
Experiments on hexagonal graphene-like structures using microwave measuring techniques are presented. The lowest transverse-electric resonance of coupled dielectric disks sandwiched between two metallic plates establishes a tight-binding configuration. The nearest-neighbor coupling approximation is...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-01, Vol.87 (3), Article 035101 |
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| container_title | Physical review. B, Condensed matter and materials physics |
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| creator | Barkhofen, S. Bellec, M. Kuhl, U. Mortessagne, F. |
| description | Experiments on hexagonal graphene-like structures using microwave measuring techniques are presented. The lowest transverse-electric resonance of coupled dielectric disks sandwiched between two metallic plates establishes a tight-binding configuration. The nearest-neighbor coupling approximation is investigated in systems with few disks. Taking advantage of the high flexibility of the disks positions, consequences of the disorder introduced in the graphene lattice on the Dirac points are investigated. Using two different types of disks, a boron-nitride-like structure (a hexagonal lattice with a two-atom basis) is implemented, showing the appearance of a band gap. |
| doi_str_mv | 10.1103/PhysRevB.87.035101 |
| format | Article |
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| ispartof | Physical review. B, Condensed matter and materials physics, 2013-01, Vol.87 (3), Article 035101 |
| issn | 1098-0121 1550-235X |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_00767913v1 |
| source | American Physical Society Journals |
| subjects | Approximation Condensed Matter Disks Flexibility Graphene Joining Mathematical analysis Mesoscopic Systems and Quantum Hall Effect Microwaves Physics |
| title | Disordered graphene and boron nitride in a microwave tight-binding analog |
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