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IPM
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“School of Physic”

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Paper   IPM / Physic / 13488
School of Physics
  Title:   Valley- and spin-filter in monolayer MoS2
  Author(s): 
1.  L. Majidi
2.  M. Zare
3.  R. Asgari
  Status:   Published
  Journal: Solid State Commun.
  Vol.:  199
  Year:  2014
  Pages:   52-55
  Supported by:  IPM
  Abstract:
We propose a valley- and spin-filter based on a normal/ferromagnetic/normal molybdenum disulfide (MoS2) junction, where the polarizations of the valley and the spin can be inverted by reversing the direction of the exchange field in the ferromagnetic region. The polarizations are also tunable by application of a gate voltage to the structure and changing the exchange field. We further demonstrate that the presence of a topological term (β) in the Hamiltonian can enhance or reduce the charge conductance, depending on the value of the exchange field, and reduces the small polarizations.

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