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Transport signatures of pseudomagnetic Landau levels in strained graphene ribbons

Research output: Contribution to journalJournal article


Article number266801
<mark>Journal publication date</mark>24/06/2013
<mark>Journal</mark>Physical Review Letters
Number of pages5
Early online date24/06/13
<mark>Original language</mark>English


In inhomogeneously strained graphene, low-energy electrons experience a valley-antisymmetric pseudomagnetic 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 pseudomagnetic 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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