Transport signatures of pseudomagnetic Landau levels in strained graphene ribbons

Gradinar, Diana and Mucha Kruczynski, Marcin and Schomerus, Henning and Falko, Vladimir (2013) Transport signatures of pseudomagnetic Landau levels in strained graphene ribbons. Physical review letters, 110. ISSN 1079-7114

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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.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
© 2013 American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
65564
Deposited By:
Deposited On:
08 Jul 2013 08:08
Refereed?:
Yes
Published?:
Published
Last Modified:
02 Dec 2020 01:46