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The conductance and the shot noise were investigated in graphene superlattice. A new Dirac point appears in the graphene superlattice and the position of the new Dirac point depends on the ratio of the width of the barriers to that of the wells. At the new Dirac point the conductance is minimum and the Fano factor reaches its max value 1/3. This Dirac point is robust against the magnetic field. In the energy window below the Dirac point, the magnetic field weakens the conductance but enhances the Fano factor.
Published in:
Applied Physics Letters
(Volume:98
,
Issue:
24
)
Date of Publication: Jun 2011
- Page(s):
- 242101 - 242101-3
- ISSN :
- 0003-6951
- Digital Object Identifier :
- 10.1063/1.3599447
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 16 June 2011
- Issue Date :
- Jun 2011
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