Trigonal warping effect on velocity and transverse confinement length of topologically confined states in bilayer graphene

Gradinar, Diana and Falko, Vladimir (2015) Trigonal warping effect on velocity and transverse confinement length of topologically confined states in bilayer graphene. Physical review B, 92 (16). ISSN 1098-0121

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Abstract

In bilayer graphene an interface between regions with opposite sign of the interlayer asymmetry gap leads to the spatial confinement of low-energy chiral modes [I. Martin, Y. M. Blanter, and A. F. Morpurgo, Phys. Rev. Lett. 100, 036804 (2008)]. Here we study the influence of trigonal warping on the properties of the interface-guided stats and find that in the vicinity of the band edges the group velocity and transverse confinement length exhibit a nonmonotonic dependence on the crystallographic orientation of the crystal with respect to the interface.

Item Type:
Journal Article
Journal or Publication Title:
Physical review B
ID Code:
81241
Deposited By:
Deposited On:
22 Aug 2016 12:36
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Apr 2020 04:52