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Paper   IPM / P / 13007
School of Physics
  Title:   Valley Polarized Transport in Strained Graphene Based Corbino Disc
1.  Z. Khatibi
2.  H. Rostami
3.  R. Asgari
  Status:   Published
  Journal: Phys. Rev. B
  Vol.:  88
  Year:  2013
  Pages:   195426
  Supported by:  IPM
We study analytically and numerically the magnetotransport of a strained graphene in a Corbino geometry gating in the presence of an external perpendicular magnetic eld. The conductance of the Corbino disc of deformed graphene with a uniaxial and an inhomogeneous strain is calculated by using the Landauer-Buttiker method. We show that the oscillation period of the conductance as a function of the magnetic ux depends on strain and the conductance amplitude sharply drop along the direction of graphene stretching. A valley polarized regime, caused by inhomogeneous strain, is obtained and in addition we nd a wide energy interval in which the system is fully valley polarized.

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