Rights statement: © 2013 American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Transport signatures of pseudomagnetic Landau levels in strained graphene ribbons
AU - Gradinar, Diana
AU - Mucha Kruczynski, Marcin
AU - Schomerus, Henning
AU - Falko, Vladimir
N1 - © 2013 American Physical Society
PY - 2013/6/24
Y1 - 2013/6/24
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevLett.110.266801
DO - 10.1103/PhysRevLett.110.266801
M3 - Journal article
VL - 110
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
M1 - 266801
ER -