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arXiv · 1008.4679

Interface Landau levels in graphene monolayer-bilayer junction

Mikito Koshino·Takeshi Nakanishi·Tsuneya Ando
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Abstract

Electronic structure of graphene monolayer-bilayer junction in a magnetic field is studied within an effective-mass approximation. The energy spectrum is characterized by interface Landau levels, i.e., the locally flat bands appearing near the boundary region, resulting in a series of characteristic peaks in the local density of states. Their energies are independent of boundary types such as zigzag or armchair. In the atomic scale, the local density of states shows a Kekulé pattern due to the valley mixing in the armchair boundary, while does not in the zigzag boundary.

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Mikito Koshino, Takeshi Nakanishi, Tsuneya Ando. 2010-08-27. Interface Landau levels in graphene monolayer-bilayer junction. https://doi.org/10.1103/physrevb.82.205436

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