Klein tunneling through double barrier in ABC-trilayer graphene

• URL: http://arxiv.org/abs/2109.15100v1
• Date: Thu, 30 Sep 2021 13:06:13 GMT
• Title: Klein tunneling through double barrier in ABC-trilayer graphene
• Authors: Abderrahim El Mouhafid, Ahmed Jellal, Miloud Mekkaoui
• Abstract summary: Klein tunneling and conductance for Dirac fermions in ABC-stacked trilayer graphene (ABC-TLG) through symmetric and asymmetric double potential barriers are investigated. Numerical results for our system show that the transport is sensitive to the height, the width and the distance between the two barriers.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Klein tunneling and conductance for Dirac fermions in ABC-stacked trilayer graphene (ABC-TLG) through symmetric and asymmetric double potential barriers are investigated using the two and six-band continuum model. Numerical results for our system show that the transport is sensitive to the height, the width and the distance between the two barriers. Klein paradox at normal incidence and resonant features at non-normal incidence in the transmission result from resonant electron states in the wells or hole states in the barriers and strongly influence the ballistic conductance of the structures.

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