期刊
PHYSICAL REVIEW B
卷 82, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.094308
关键词
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资金
- Deutsche Forschungsgemeinschaft
- Forschergruppe [760]
- University of Nice
- Federation Doblin
We present a microwave realization of finite tight-binding graphene-like structures. The structures are realized using disks with a high index of refraction. The disks are placed on a metallic surface while a second surface is adjusted atop the disks, such that the waves coupling the disks in the air are evanescent, leading to the tight-binding behavior. In reflection measurements the Dirac point and a linear increase close to the Dirac point is observed, if the measurement is performed inside the sample. Resonances due to edge states are found close to the Dirac point if the measurements are performed at the zigzag edge or at the corner in case of a broken benzene ring.
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