Journal
EPL
Volume 97, Issue 6, Pages -Publisher
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/97/67004
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Funding
- ANR [BLANC-10 IsoTop]
- European Marie Curie ITN NanoCTM
- Swiss National Science Foundation
- Swiss National Center of Competence in Research on Quantum Science and Technology
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We define and study a three-dimensional lattice model which displays a Weyl semi-metallic phase. This model consists of coupled layers of quantum (anomalous) Hall insulators. The Weyl semi-metallic phase appears between a resulting quantum Hall insulating phase and a normal insulating phase. Weyl fermions in this Weyl semi-metal, similar to Dirac fermions in graphene, have their lattice pseudo-spin locked to their momenta. We investigate surface states and Fermi arcs, and their evolution for different phases, by exactly diagonalizing the lattice model as well as by analyzing their topological origins. Copyright (C) EPLA, 2012
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