Spin and Valley Splittings in Multilayered Massless Dirac Fermion System

Abstract

The inter-layer magnetoresistance in a multilayered massless Dirac fermion system, $\alpha$-(BEDT-TTF)${}_2$I${}_3$, under hydrostatic pressure was investigated. We succeeded in detecting the zero-mode (n=0) Landau level and its spin splitting in the magnetic field normal to the 2D plane. We demonstrated that the effective Coulomb interaction in the magnetic field intensifies the spin splitting of zero-mode Landau carriers. At temperatures below 2K, magnetic fields above several Tesla break the twofold valley degeneracy.

4 page, 4 figures

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Cited by in corpus (19)

• Anomalous Spin Correlations and Mass-Generating Excitonic Instability of Interacting Weyl Fermions
• Quantum Hall effect in multilayered massless Dirac fermion systems with tilted cones
• Longitudinal conductivity of massless fermions with tilted Dirac cone in magnetic field
• Inter-Band Effects of Magnetic Field on Hall Conductivity in Multi Layered Massless Dirac Fermion System $\alpha$-(BEDT-TTF)${}_2$I${}_3$
• Ambient pressure Dirac electron system in quasi-two-dimensional molecular conductor $\alpha$-(BETS)${}_2$I${}_3$
• Giant Current-Perpendicular-to-Plane Magnetoresistance in Multilayer Graphene as Grown on Nickel
• ${}^{13}$C NMR Study on the Charge-Disproportionated Conducting State in the Quasi-Two-Dimensional Organic Conductor $\alpha$-(BEDT-TTF)${}_2$I${}_3$
• Thermoelectric Transport Coefficients for Massless Dirac Electrons in Quantum Limit
• Excitonic instability of two-dimensional tilted Dirac cones
• Pressure-induced phase switching of the Shubnikov de Haas oscillations in molecular Dirac fermion system $\alpha -$(BETS)${}_2$I${}_3$
• Possible Current-Induced Phenomena and Domain Control in an Organic Dirac Fermion System with Weak Charge Ordering
• Aperiodic quantum oscillations of particle-hole asymmetric Dirac cones
• Theory of inplane magnetoresistance in two-dimensional massless Dirac fermion system
• Surface Transport in the ν=0 Quantum Hall Ferromagnetic State in the Organic Dirac Fermion System
• Tight-Binding Model and Electronic Property of Dirac Nodal Line in Single-Component Molecular Conductor [Pt(dmdt)${}_2$]
• Possible Nonlinear Anomalous Thermoelectric Effect in Organic Massive Dirac Fermion System
• Angle Dependent Interlayer Magnetoresistance (ILMR) in Multilayer Graphene Stacks
• Spin-Ordered States in Multilayer Massless Dirac Fermion Systems
• Effect of Interlayer Spin-Flip Tunneling for Interlayer Magnetoresistance in Multilayer Massless Dirac Fermion Systems