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Title
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Strain controlled valley filtering in multi-terminal graphene structures
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Author
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Abstract
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| Valley-polarized currents can be generated by local straining of multi-terminal graphene devices. The pseudo-magnetic field created by the deformation allows electrons from only one valley to transmit, and a current of electrons from a single valley is generated at the opposite side of the locally strained region. We show that valley filtering is most effective with bumps of a certain height and width. Despite the fact that the highest contribution to the polarized current comes from electrons from the lowest sub-band, contributions of other sub-bands are not negligible and can significantly enhance the output current. Published by AIP Publishing. |
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Language
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English
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Source (journal)
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Applied physics letters / American Institute of Physics. - New York, N.Y., 1962, currens
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Publication
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New York, N.Y.
:
American Institute of Physics
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2016
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ISSN
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0003-6951
[print]
1077-3118
[online]
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DOI
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10.1063/1.4967977
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Volume/pages
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109
:20
(2016)
, 4 p.
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Article Reference
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203108
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ISI
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000388000000049
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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