Transport signatures of pseudomagnetic Landau levels in strained graphene ribbons

Diana A. Gradinar, Marcin Mucha-Kruczynski, Henning Schomerus, Vladimir I. Fal’ko

Research output: Contribution to journalLetter

25 Citations (Scopus)
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Abstract

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.
Original languageEnglish
Article number266801
Number of pages5
JournalPhysical Review Letters
Volume110
Issue number26
DOIs
Publication statusPublished - 24 Jun 2013

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