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Author | Moldovan, D.; Peeters, F.M. | ||||
Title | Strain engineering of the electronic properties of bilayer graphene quantum dots: Strain engineering of the electronic properties of bilayer graphene quantum dots | Type | A1 Journal article | ||
Year | 2015 | Publication | Physica status solidi: rapid research letters | Abbreviated Journal | Phys Status Solidi-R |
Volume | 10 | Issue | 10 | Pages | 39-45 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | We study the effect of mechanical deformations on the elec- tronic properties of hexagonal flakes of bilayer graphene. The behavior of electrons induced by triaxial strain can be de- scribed by an effective pseudo-magnetic field which is homo- geneous in the center of the flake. We find that in-plane strain, applied to both layers equally, can break the layer symmetry leading to different behavior in the top and bottom layers of graphene. At low energy, just one of the layers feels the pseudo-magnetic field: the zero-energy pseudo-Landau level is missing in the second layer, thus creating a gap be- tween the lowest non-zero levels. While the layer asymmetry is most significant at zero energy, interaction with the edges of the flake extends the effect to higher pseudo-Landau lev- els. The behavior of the top and bottom layers may be re- versed by rotating the triaxial strain by 60°. |
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Language | Wos | 000368814500005 | Publication Date | 2015-08-18 | |
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ISSN | 1862-6254; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.032 | Times cited | 9 | Open Access | |
Notes | This work was supported by the European Science Foundation (ESF) under the EUROCORES Program EuroGRAPHENE within the project CONGRAN, the Flemish Science Foundation (FWO-Vl) and the Methusalem Funding of the Flemish Government. | Approved | Most recent IF: 3.032; 2015 IF: 2.142 | ||
Call Number | c:irua:129592 | Serial | 3970 | ||
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