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      Electronic features of rippled graphene

      , Article ICEE 2012 - 20th Iranian Conference on Electrical Engineering ; 2012 , Pages 170-172 ; 9781467311489 (ISBN) Haji Nasiri, S ; Moravvej Farshi, M. K ; Faez, R ; Bajelan, A ; Sharif University of Technology
      2012
      Abstract
      Using tight binding theory the effect of topological ripples on the electronic band structure, density of states (DOS), and Fermi velocity of graphene are studied. The results show that by an increase in the ripple height the graphene Fermi velocity decreases and its DOS increases.- Moreover, we show that an increase in the ripple period causes the graphene band gap and DOS to decrease and its Fermi velocity to increase  
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