Orbital Magnetism and Transport Phenomena in Two Dimensional Dirac Fermions in Weak Magnetic Field

Abstract

We discuss the orbital magnetism and the Hall effect in the weak magnetic field in two dimensional Dirac fermion systems with energy gap. This model is related to the graphene sheet, organic conductors, and $d$-density wave superconductors. We found the strong diamagnetism and finite Hall conductivity even in gapped systems. We also discuss the relation between the weak-magnetic field formalism and the Landau quantization with the Euler-Maclaurin expansion.

4pages,3figures

References in corpus (6)

• Unconventional Integer Quantum Hall effect in graphene
• On the minimal conductivity of graphene
• Robust Transport Properties in Graphene
• Anomalous Orbital Magnetism and Hall Effect of Massless Fermions in Two Dimension
• Diamagnetism in disordered graphene
• Diamagnetism of nodal fermions

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• Nodal-line semimetal HMTSF-TCNQ: Anomalous orbital diamagnetism and charge density wave
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