Interband effects of magnetic field on Hall conductivity in the multilayered massless Dirac fermion system 
-(BEDT-TTF)2I3
Source: Phys. Rev. B 85, 033401 (2012); http://dx.doi.org/10.1103/PhysRevB.85.033401
Published 12 January 2012
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We have discovered a two-dimensional zero-gap material with a layered structure in the organic conductor -(BEDT-TTF)2I3 under high hydrostatic pressure. In contrast to graphene, the electron-hole symmetry is not good except at the vicinity of the Dirac points. Thus, the temperature dependence of the chemical potential µ plays an important role in the transport in this system. The experimental formula of µ is revealed. We succeeded in detecting the interband effects of a magnetic field on the Hall conductivity when µ passes the Dirac point.
-(BEDT-TTF)2I3 under high hydrostatic pressure. In contrast to graphene, the electron-hole symmetry is not good except at the vicinity of the Dirac points. Thus, the temperature dependence of the chemical potential µ plays an important role in the transport in this system. The experimental formula of µ is revealed. We succeeded in detecting the interband effects of a magnetic field on the Hall conductivity when µ passes the Dirac point.
| History: | Received 24 November 2011; revised 27 December 2011; published 12 January 2012 |
| Digital Object Identifier: |
http://dx.doi.org/10.1103/PhysRevB.85.033401 |
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