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Twisted Fermi surface of a thin-film Weyl semimetal
N. Bovenzi, M. Breitkreiz, T. E. O'Brien +2
The Fermi surface of a conventional two-dimensional electron gas is equivalent to a circle, up to smooth deformations that preserve the orientation of the equi-energy contour. Here…
Chirality blockade of Andreev reflection in a magnetic Weyl semimetal
N. Bovenzi, M. Breitkreiz, P. Baireuther +4
A Weyl semimetal with broken time-reversal symmetry has a minimum of two species of Weyl fermions, distinguished by their opposite chirality, in a pair of Weyl cones at opposite mo…
Universal geometric classification of armchair graphene nanoribbons by their properties in a staggered sublattice potential
T. E. O'Brien, Chao Zhang, Anthony R. Wright
We demonstrate the topological properties of the band-gap of armchair graphene nanoribbons in a spatially varying staggered sublattice potential. Several general scaling laws are p…