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arXiv · 1303.3140

Transport signatures of pseudo-magnetic Landau levels in strained graphene ribbons

Diana A. Gradinar·Marcin Mucha-Kruczyński·Henning Schomerus·Vladimir I. Fal'ko
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Abstract

In inhomogeneously strained graphene, low-energy electrons experience a valley-antisymmetric pseudo-magnetic field which leads to the formation of localized states at the edge between the valence and conduction bands, understood in terms of peculiar n=0 pseudo-magnetic Landau levels. Here we show that such states can manifest themselves as an isolated quadruplet of low-energy conductance resonances in a suspended stretched graphene ribbon, where clamping by the metallic contacts results in a strong inhomogeneity of strain near the ribbon ends.

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Diana A. Gradinar, Marcin Mucha-Kruczyński, Henning Schomerus, Vladimir I. Fal'ko. 2013-03-13. Transport signatures of pseudo-magnetic Landau levels in strained graphene ribbons. https://doi.org/10.1103/physrevlett.110.266801

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