Anomalous tunneling characteristic of Weyl semimetals with tilted energy dispersion
arXiv:1610.06288 · doi:10.1063/1.4997296
Abstract
Weyl semimetal is a recently discovered state of quantum matter, which generally possesses tilted energy dispersion. Here, we investigate the electron tunneling through a Weyl semimetal p-n-p junction. The angular dependence of electron tunneling exhibits an anomalous profile such that perfect transmission angles are shifted along the direction of the tilt. Coupling of the tilted dispersion and electrical potential within the barrier region gives rise to a transverse momentum shift, which is analogous to the transverse Lorentz displacement induced by magnetic barriers.
References in corpus (19)
- Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
- Chiral tunneling and the Klein paradox in graphene
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- Experimental discovery of Weyl semimetal TaAs
- Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
- Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
- All-graphene integrated circuits via strain engineering
- Observation of Weyl nodes in TaAs
- Veselago Lens for Electrons: Focusing and Caustics in Graphene p-n Junctions
- Discovery of a Weyl Fermion semimetal state in NbAs
- Gate-Tunable Negative Longitudinal Magnetoresistance in the Predicted Type-II Weyl Semimetal WTe2
- Ballistic interferences in suspended graphene
- Valley filter in strain engineered graphene
- Conductance oscillations induced by ballistic snake states in a graphene heterojunction
- Klein tunneling in Weyl semimetals under the influence of magnetic field
- Perfect valley filter in strained graphene with single barrier region
- Efficient Dual Spin-Valley Filter In Strained Silicene
- Influence of Fermi arc states and double Weyl node on tunneling in a Dirac semimetal
- Kopnin force and chiral anomaly