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 Publish in OALib Journal ISSN: 2333-9721 APC: Only $99  Views Downloads  Relative Articles Quantum Hall effect in multilayered massless Dirac fermion systems with tilted cones Quantized Hall conductivity of Bloch electrons: topology and the Dirac fermion Nonperturbative emergence of Dirac composite fermion in fractional quantum Hall effects Is the Composite Fermion a Dirac Particle? Inter-Band Effects of Magnetic Field on Hall Conductivity in Multi Layered Massless Dirac Fermion System$α$-(BEDT-TTF)$_2$I$_3\$ Spin-orbit coupling, edge states and quantum spin Hall criticality due to Dirac fermion confinement: The case study of graphene Dirac Fermion Confinement in Graphene The Spacetime of a Dirac Fermion Anomalous Hall effect in ferromagnetic semiconductors Manipulation of the Dirac cones and the anomaly in the graphene related quantum Hall effect More...
Physics  2015

# Surface Transport in the ν=0 Quantum Hall Ferromagnetic State in the Organic Dirac Fermion System

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Abstract:

We discuss the surface magnetotransport in the quantum Hall (QH) ferromagnetic state expected in the organic Dirac fermion system \alpha-(BEDT-TTF)_2I_3. The QH ferromagnetic state is one of the possible \nu=0 QH states in the two-dimensional Dirac fermion system resulting from the degeneracy breaking of the n=0 Landau level. It is characterized by the helical edge state. We have studied the interlayer surface transport via helical edge state in the multilayer QH ferromagnet, in which the bulk region is insulating. We have clarified that the surface conductivity is much less than e^2/h and decreases as the magnetic field is tilted to the normal direction of the side surface. These features explain the observed interlayer magnetoresistance in \alpha-(BEDT-TTF)_2I_3.

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